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wireless: Add channel/frequency conversions to ieee80211.h
[deliverable/linux.git] / drivers / net / wireless / atmel.c
CommitLineData
1da177e4
LT		 1/*** -*- linux-c -*- **********************************************************
2
3 Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
4
5 Copyright 2000-2001 ATMEL Corporation.
6 Copyright 2003-2004 Simon Kelley.
7
4d791aad
CP		 8 This code was developed from version 2.1.1 of the Atmel drivers,
9 released by Atmel corp. under the GPL in December 2002. It also
10 includes code from the Linux aironet drivers (C) Benjamin Reed,
1da177e4
LT		 11 and the Linux PCMCIA package, (C) David Hinds and the Linux wireless
12 extensions, (C) Jean Tourrilhes.
13
14 The firmware module for reading the MAC address of the card comes from
15 net.russotto.AtmelMACFW, written by Matthew T. Russotto and copyright
16 by him. net.russotto.AtmelMACFW is used under the GPL license version 2.
17 This file contains the module in binary form and, under the terms
18 of the GPL, in source form. The source is located at the end of the file.
19
20 This program is free software; you can redistribute it and/or modify
21 it under the terms of the GNU General Public License as published by
22 the Free Software Foundation; either version 2 of the License, or
23 (at your option) any later version.
24
25 This software is distributed in the hope that it will be useful,
26 but WITHOUT ANY WARRANTY; without even the implied warranty of
27 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 GNU General Public License for more details.
29
30 You should have received a copy of the GNU General Public License
31 along with Atmel wireless lan drivers; if not, write to the Free Software
32 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33
4d791aad 34 For all queries about this code, please contact the current author,
1da177e4
LT		 35 Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
36
37 Credit is due to HP UK and Cambridge Online Systems Ltd for supplying
38 hardware used during development of this driver.
39
40******************************************************************************/
41
1da177e4
LT		 42#include <linux/init.h>
43
44#include <linux/kernel.h>
1da177e4
LT		 45#include <linux/ptrace.h>
46#include <linux/slab.h>
47#include <linux/string.h>
48#include <linux/ctype.h>
49#include <linux/timer.h>
9a6ab769 50#include <asm/byteorder.h>
1da177e4
LT		 51#include <asm/io.h>
52#include <asm/system.h>
53#include <asm/uaccess.h>
54#include <linux/module.h>
55#include <linux/netdevice.h>
56#include <linux/etherdevice.h>
57#include <linux/skbuff.h>
58#include <linux/if_arp.h>
59#include <linux/ioport.h>
60#include <linux/fcntl.h>
61#include <linux/delay.h>
62#include <linux/wireless.h>
63#include <net/iw_handler.h>
1da177e4
LT		 64#include <linux/crc32.h>
65#include <linux/proc_fs.h>
66#include <linux/device.h>
67#include <linux/moduleparam.h>
68#include <linux/firmware.h>
6e33e30d 69#include <linux/jiffies.h>
2c706002 70#include <linux/ieee80211.h>
1da177e4
LT		 71#include "atmel.h"
72
73#define DRIVER_MAJOR 0
b16a228d 74#define DRIVER_MINOR 98
1da177e4
LT		 75
76MODULE_AUTHOR("Simon Kelley");
77MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
78MODULE_LICENSE("GPL");
79MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards");
80
4d791aad 81/* The name of the firmware file to be loaded
1da177e4
LT		 82 over-rides any automatic selection */
83static char *firmware = NULL;
84module_param(firmware, charp, 0);
85
86/* table of firmware file names */
4d791aad 87static struct {
1da177e4
LT		 88 AtmelFWType fw_type;
89 const char *fw_file;
90 const char *fw_file_ext;
91} fw_table[] = {
92 { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" },
93 { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" },
94 { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" },
95 { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" },
96 { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" },
97 { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" },
98 { ATMEL_FW_TYPE_504A_2958,"atmel_at76c504a_2958","bin" },
99 { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" },
100 { ATMEL_FW_TYPE_NONE, NULL, NULL }
101};
102
103#define MAX_SSID_LENGTH 32
104#define MGMT_JIFFIES (256 * HZ / 100)
105
4d791aad 106#define MAX_BSS_ENTRIES 64
1da177e4
LT		 107
108/* registers */
4d791aad
CP		 109#define GCR 0x00 // (SIR0) General Configuration Register
110#define BSR 0x02 // (SIR1) Bank Switching Select Register
1da177e4
LT		 111#define AR 0x04
112#define DR 0x08
4d791aad
CP		 113#define MR1 0x12 // Mirror Register 1
114#define MR2 0x14 // Mirror Register 2
115#define MR3 0x16 // Mirror Register 3
116#define MR4 0x18 // Mirror Register 4
1da177e4
LT		 117
118#define GPR1 0x0c
119#define GPR2 0x0e
120#define GPR3 0x10
121//
122// Constants for the GCR register.
123//
124#define GCR_REMAP 0x0400 // Remap internal SRAM to 0
4d791aad 125#define GCR_SWRES 0x0080 // BIU reset (ARM and PAI are NOT reset)
1da177e4 126#define GCR_CORES 0x0060 // Core Reset (ARM and PAI are reset)
4d791aad 127#define GCR_ENINT 0x0002 // Enable Interrupts
1da177e4
LT		 128#define GCR_ACKINT 0x0008 // Acknowledge Interrupts
129
130#define BSS_SRAM 0x0200 // AMBA module selection --> SRAM
131#define BSS_IRAM 0x0100 // AMBA module selection --> IRAM
132//
133// Constants for the MR registers.
134//
135#define MAC_INIT_COMPLETE 0x0001 // MAC init has been completed
136#define MAC_BOOT_COMPLETE 0x0010 // MAC boot has been completed
137#define MAC_INIT_OK 0x0002 // MAC boot has been completed
138
1da177e4
LT		 139#define MIB_MAX_DATA_BYTES 212
140#define MIB_HEADER_SIZE 4 /* first four fields */
141
142struct get_set_mib {
143 u8 type;
144 u8 size;
145 u8 index;
146 u8 reserved;
147 u8 data[MIB_MAX_DATA_BYTES];
148};
149
150struct rx_desc {
151 u32 Next;
152 u16 MsduPos;
153 u16 MsduSize;
4d791aad 154
1da177e4
LT		 155 u8 State;
156 u8 Status;
157 u8 Rate;
158 u8 Rssi;
159 u8 LinkQuality;
160 u8 PreambleType;
161 u16 Duration;
162 u32 RxTime;
1da177e4
LT		 163};
164
165#define RX_DESC_FLAG_VALID 0x80
166#define RX_DESC_FLAG_CONSUMED 0x40
167#define RX_DESC_FLAG_IDLE 0x00
168
169#define RX_STATUS_SUCCESS 0x00
170
171#define RX_DESC_MSDU_POS_OFFSET 4
172#define RX_DESC_MSDU_SIZE_OFFSET 6
173#define RX_DESC_FLAGS_OFFSET 8
174#define RX_DESC_STATUS_OFFSET 9
175#define RX_DESC_RSSI_OFFSET 11
176#define RX_DESC_LINK_QUALITY_OFFSET 12
177#define RX_DESC_PREAMBLE_TYPE_OFFSET 13
178#define RX_DESC_DURATION_OFFSET 14
179#define RX_DESC_RX_TIME_OFFSET 16
180
1da177e4
LT		 181struct tx_desc {
182 u32 NextDescriptor;
183 u16 TxStartOfFrame;
184 u16 TxLength;
4d791aad 185
1da177e4
LT		 186 u8 TxState;
187 u8 TxStatus;
188 u8 RetryCount;
4d791aad 189
1da177e4
LT		 190 u8 TxRate;
191
192 u8 KeyIndex;
193 u8 ChiperType;
194 u8 ChipreLength;
195 u8 Reserved1;
196
197 u8 Reserved;
198 u8 PacketType;
199 u16 HostTxLength;
1da177e4
LT		 200};
201
1da177e4
LT		 202#define TX_DESC_NEXT_OFFSET 0
203#define TX_DESC_POS_OFFSET 4
204#define TX_DESC_SIZE_OFFSET 6
205#define TX_DESC_FLAGS_OFFSET 8
206#define TX_DESC_STATUS_OFFSET 9
207#define TX_DESC_RETRY_OFFSET 10
208#define TX_DESC_RATE_OFFSET 11
209#define TX_DESC_KEY_INDEX_OFFSET 12
210#define TX_DESC_CIPHER_TYPE_OFFSET 13
211#define TX_DESC_CIPHER_LENGTH_OFFSET 14
212#define TX_DESC_PACKET_TYPE_OFFSET 17
213#define TX_DESC_HOST_LENGTH_OFFSET 18
214
1da177e4
LT		 215///////////////////////////////////////////////////////
216// Host-MAC interface
217///////////////////////////////////////////////////////
218
219#define TX_STATUS_SUCCESS 0x00
220
221#define TX_FIRM_OWN 0x80
222#define TX_DONE 0x40
223
1da177e4
LT		 224#define TX_ERROR 0x01
225
226#define TX_PACKET_TYPE_DATA 0x01
227#define TX_PACKET_TYPE_MGMT 0x02
228
229#define ISR_EMPTY 0x00 // no bits set in ISR
230#define ISR_TxCOMPLETE 0x01 // packet transmitted
231#define ISR_RxCOMPLETE 0x02 // packet received
232#define ISR_RxFRAMELOST 0x04 // Rx Frame lost
233#define ISR_FATAL_ERROR 0x08 // Fatal error
234#define ISR_COMMAND_COMPLETE 0x10 // command completed
235#define ISR_OUT_OF_RANGE 0x20 // command completed
236#define ISR_IBSS_MERGE 0x40 // (4.1.2.30): IBSS merge
4d791aad 237#define ISR_GENERIC_IRQ 0x80
1da177e4
LT		 238
239#define Local_Mib_Type 0x01
240#define Mac_Address_Mib_Type 0x02
241#define Mac_Mib_Type 0x03
242#define Statistics_Mib_Type 0x04
243#define Mac_Mgmt_Mib_Type 0x05
244#define Mac_Wep_Mib_Type 0x06
245#define Phy_Mib_Type 0x07
246#define Multi_Domain_MIB 0x08
247
248#define MAC_MGMT_MIB_CUR_BSSID_POS 14
249#define MAC_MIB_FRAG_THRESHOLD_POS 8
250#define MAC_MIB_RTS_THRESHOLD_POS 10
251#define MAC_MIB_SHORT_RETRY_POS 16
252#define MAC_MIB_LONG_RETRY_POS 17
253#define MAC_MIB_SHORT_RETRY_LIMIT_POS 16
254#define MAC_MGMT_MIB_BEACON_PER_POS 0
255#define MAC_MGMT_MIB_STATION_ID_POS 6
256#define MAC_MGMT_MIB_CUR_PRIVACY_POS 11
257#define MAC_MGMT_MIB_CUR_BSSID_POS 14
258#define MAC_MGMT_MIB_PS_MODE_POS 53
259#define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54
260#define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56
261#define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57
262#define PHY_MIB_CHANNEL_POS 14
263#define PHY_MIB_RATE_SET_POS 20
264#define PHY_MIB_REG_DOMAIN_POS 26
265#define LOCAL_MIB_AUTO_TX_RATE_POS 3
266#define LOCAL_MIB_SSID_SIZE 5
267#define LOCAL_MIB_TX_PROMISCUOUS_POS 6
268#define LOCAL_MIB_TX_MGMT_RATE_POS 7
269#define LOCAL_MIB_TX_CONTROL_RATE_POS 8
270#define LOCAL_MIB_PREAMBLE_TYPE 9
271#define MAC_ADDR_MIB_MAC_ADDR_POS 0
272
1da177e4
LT		 273#define CMD_Set_MIB_Vars 0x01
274#define CMD_Get_MIB_Vars 0x02
275#define CMD_Scan 0x03
276#define CMD_Join 0x04
277#define CMD_Start 0x05
278#define CMD_EnableRadio 0x06
279#define CMD_DisableRadio 0x07
280#define CMD_SiteSurvey 0x0B
281
282#define CMD_STATUS_IDLE 0x00
283#define CMD_STATUS_COMPLETE 0x01
284#define CMD_STATUS_UNKNOWN 0x02
285#define CMD_STATUS_INVALID_PARAMETER 0x03
286#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
287#define CMD_STATUS_TIME_OUT 0x07
288#define CMD_STATUS_IN_PROGRESS 0x08
289#define CMD_STATUS_REJECTED_RADIO_OFF 0x09
290#define CMD_STATUS_HOST_ERROR 0xFF
291#define CMD_STATUS_BUSY 0xFE
292
1da177e4
LT		 293#define CMD_BLOCK_COMMAND_OFFSET 0
294#define CMD_BLOCK_STATUS_OFFSET 1
295#define CMD_BLOCK_PARAMETERS_OFFSET 4
296
297#define SCAN_OPTIONS_SITE_SURVEY 0x80
298
299#define MGMT_FRAME_BODY_OFFSET 24
300#define MAX_AUTHENTICATION_RETRIES 3
4d791aad 301#define MAX_ASSOCIATION_RETRIES 3
1da177e4
LT		 302
303#define AUTHENTICATION_RESPONSE_TIME_OUT 1000
304
305#define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */
306#define LOOP_RETRY_LIMIT 500000
307
4d791aad
CP		 308#define ACTIVE_MODE 1
309#define PS_MODE 2
1da177e4
LT		 310
311#define MAX_ENCRYPTION_KEYS 4
312#define MAX_ENCRYPTION_KEY_SIZE 40
313
314///////////////////////////////////////////////////////////////////////////
315// 802.11 related definitions
316///////////////////////////////////////////////////////////////////////////
317
318//
319// Regulatory Domains
320//
321
322#define REG_DOMAIN_FCC 0x10 //Channels 1-11 USA
323#define REG_DOMAIN_DOC 0x20 //Channel 1-11 Canada
324#define REG_DOMAIN_ETSI 0x30 //Channel 1-13 Europe (ex Spain/France)
325#define REG_DOMAIN_SPAIN 0x31 //Channel 10-11 Spain
326#define REG_DOMAIN_FRANCE 0x32 //Channel 10-13 France
327#define REG_DOMAIN_MKK 0x40 //Channel 14 Japan
328#define REG_DOMAIN_MKK1 0x41 //Channel 1-14 Japan(MKK1)
329#define REG_DOMAIN_ISRAEL 0x50 //Channel 3-9 ISRAEL
330
4d791aad 331#define BSS_TYPE_AD_HOC 1
1da177e4
LT		 332#define BSS_TYPE_INFRASTRUCTURE 2
333
334#define SCAN_TYPE_ACTIVE 0
335#define SCAN_TYPE_PASSIVE 1
336
337#define LONG_PREAMBLE 0
338#define SHORT_PREAMBLE 1
339#define AUTO_PREAMBLE 2
340
341#define DATA_FRAME_WS_HEADER_SIZE 30
342
4d791aad 343/* promiscuous mode control */
1da177e4
LT		 344#define PROM_MODE_OFF 0x0
345#define PROM_MODE_UNKNOWN 0x1
346#define PROM_MODE_CRC_FAILED 0x2
347#define PROM_MODE_DUPLICATED 0x4
348#define PROM_MODE_MGMT 0x8
349#define PROM_MODE_CTRL 0x10
350#define PROM_MODE_BAD_PROTOCOL 0x20
351
4d791aad 352#define IFACE_INT_STATUS_OFFSET 0
1da177e4
LT		 353#define IFACE_INT_MASK_OFFSET 1
354#define IFACE_LOCKOUT_HOST_OFFSET 2
355#define IFACE_LOCKOUT_MAC_OFFSET 3
356#define IFACE_FUNC_CTRL_OFFSET 28
357#define IFACE_MAC_STAT_OFFSET 30
358#define IFACE_GENERIC_INT_TYPE_OFFSET 32
359
4d791aad 360#define CIPHER_SUITE_NONE 0
1da177e4
LT		 361#define CIPHER_SUITE_WEP_64 1
362#define CIPHER_SUITE_TKIP 2
363#define CIPHER_SUITE_AES 3
364#define CIPHER_SUITE_CCX 4
365#define CIPHER_SUITE_WEP_128 5
366
367//
368// IFACE MACROS & definitions
369//
370//
371
4d791aad 372// FuncCtrl field:
1da177e4
LT		 373//
374#define FUNC_CTRL_TxENABLE 0x10
375#define FUNC_CTRL_RxENABLE 0x20
4d791aad 376#define FUNC_CTRL_INIT_COMPLETE 0x01
1da177e4
LT		 377
378/* A stub firmware image which reads the MAC address from NVRAM on the card.
379 For copyright information and source see the end of this file. */
380static u8 mac_reader[] = {
381 0x06,0x00,0x00,0xea,0x04,0x00,0x00,0xea,0x03,0x00,0x00,0xea,0x02,0x00,0x00,0xea,
382 0x01,0x00,0x00,0xea,0x00,0x00,0x00,0xea,0xff,0xff,0xff,0xea,0xfe,0xff,0xff,0xea,
383 0xd3,0x00,0xa0,0xe3,0x00,0xf0,0x21,0xe1,0x0e,0x04,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
384 0x81,0x11,0xa0,0xe1,0x00,0x10,0x81,0xe3,0x00,0x10,0x80,0xe5,0x1c,0x10,0x90,0xe5,
385 0x10,0x10,0xc1,0xe3,0x1c,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,0x08,0x10,0x80,0xe5,
386 0x02,0x03,0xa0,0xe3,0x00,0x10,0xa0,0xe3,0xb0,0x10,0xc0,0xe1,0xb4,0x10,0xc0,0xe1,
387 0xb8,0x10,0xc0,0xe1,0xbc,0x10,0xc0,0xe1,0x56,0xdc,0xa0,0xe3,0x21,0x00,0x00,0xeb,
388 0x0a,0x00,0xa0,0xe3,0x1a,0x00,0x00,0xeb,0x10,0x00,0x00,0xeb,0x07,0x00,0x00,0xeb,
389 0x02,0x03,0xa0,0xe3,0x02,0x14,0xa0,0xe3,0xb4,0x10,0xc0,0xe1,0x4c,0x10,0x9f,0xe5,
390 0xbc,0x10,0xc0,0xe1,0x10,0x10,0xa0,0xe3,0xb8,0x10,0xc0,0xe1,0xfe,0xff,0xff,0xea,
391 0x00,0x40,0x2d,0xe9,0x00,0x20,0xa0,0xe3,0x02,0x3c,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
392 0x28,0x00,0x9f,0xe5,0x37,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,
393 0x00,0x40,0x2d,0xe9,0x12,0x2e,0xa0,0xe3,0x06,0x30,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
394 0x02,0x04,0xa0,0xe3,0x2f,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,
395 0x00,0x02,0x00,0x02,0x80,0x01,0x90,0xe0,0x01,0x00,0x00,0x0a,0x01,0x00,0x50,0xe2,
396 0xfc,0xff,0xff,0xea,0x1e,0xff,0x2f,0xe1,0x80,0x10,0xa0,0xe3,0xf3,0x06,0xa0,0xe3,
397 0x00,0x10,0x80,0xe5,0x00,0x10,0xa0,0xe3,0x00,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,
398 0x04,0x10,0x80,0xe5,0x00,0x10,0x80,0xe5,0x0e,0x34,0xa0,0xe3,0x1c,0x10,0x93,0xe5,
399 0x02,0x1a,0x81,0xe3,0x1c,0x10,0x83,0xe5,0x58,0x11,0x9f,0xe5,0x30,0x10,0x80,0xe5,
400 0x54,0x11,0x9f,0xe5,0x34,0x10,0x80,0xe5,0x38,0x10,0x80,0xe5,0x3c,0x10,0x80,0xe5,
401 0x10,0x10,0x90,0xe5,0x08,0x00,0x90,0xe5,0x1e,0xff,0x2f,0xe1,0xf3,0x16,0xa0,0xe3,
402 0x08,0x00,0x91,0xe5,0x05,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,0x10,0x00,0x91,0xe5,
403 0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0xff,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,
404 0x10,0x00,0x91,0xe5,0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5,
405 0x10,0x00,0x91,0xe5,0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5,
406 0xff,0x00,0x00,0xe2,0x1e,0xff,0x2f,0xe1,0x30,0x40,0x2d,0xe9,0x00,0x50,0xa0,0xe1,
407 0x03,0x40,0xa0,0xe1,0xa2,0x02,0xa0,0xe1,0x08,0x00,0x00,0xe2,0x03,0x00,0x80,0xe2,
408 0xd8,0x10,0x9f,0xe5,0x00,0x00,0xc1,0xe5,0x01,0x20,0xc1,0xe5,0xe2,0xff,0xff,0xeb,
409 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x1a,0x14,0x00,0xa0,0xe3,0xc4,0xff,0xff,0xeb,
410 0x04,0x20,0xa0,0xe1,0x05,0x10,0xa0,0xe1,0x02,0x00,0xa0,0xe3,0x01,0x00,0x00,0xeb,
411 0x30,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x70,0x40,0x2d,0xe9,0xf3,0x46,0xa0,0xe3,
412 0x00,0x30,0xa0,0xe3,0x00,0x00,0x50,0xe3,0x08,0x00,0x00,0x9a,0x8c,0x50,0x9f,0xe5,
413 0x03,0x60,0xd5,0xe7,0x0c,0x60,0x84,0xe5,0x10,0x60,0x94,0xe5,0x02,0x00,0x16,0xe3,
414 0xfc,0xff,0xff,0x0a,0x01,0x30,0x83,0xe2,0x00,0x00,0x53,0xe1,0xf7,0xff,0xff,0x3a,
415 0xff,0x30,0xa0,0xe3,0x0c,0x30,0x84,0xe5,0x08,0x00,0x94,0xe5,0x10,0x00,0x94,0xe5,
416 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x94,0xe5,0x00,0x00,0xa0,0xe3,
417 0x00,0x00,0x52,0xe3,0x0b,0x00,0x00,0x9a,0x10,0x50,0x94,0xe5,0x02,0x00,0x15,0xe3,
418 0xfc,0xff,0xff,0x0a,0x0c,0x30,0x84,0xe5,0x10,0x50,0x94,0xe5,0x01,0x00,0x15,0xe3,
419 0xfc,0xff,0xff,0x0a,0x08,0x50,0x94,0xe5,0x01,0x50,0xc1,0xe4,0x01,0x00,0x80,0xe2,
420 0x02,0x00,0x50,0xe1,0xf3,0xff,0xff,0x3a,0xc8,0x00,0xa0,0xe3,0x98,0xff,0xff,0xeb,
421 0x70,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x01,0x0c,0x00,0x02,0x01,0x02,0x00,0x02,
422 0x00,0x01,0x00,0x02
423};
424
425struct atmel_private {
426 void *card; /* Bus dependent stucture varies for PCcard */
427 int (*present_callback)(void *); /* And callback which uses it */
428 char firmware_id[32];
429 AtmelFWType firmware_type;
430 u8 *firmware;
431 int firmware_length;
432 struct timer_list management_timer;
433 struct net_device *dev;
434 struct device *sys_dev;
435 struct iw_statistics wstats;
1da177e4
LT		 436 spinlock_t irqlock, timerlock; // spinlocks
437 enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type;
4d791aad
CP		 438 enum {
439 CARD_TYPE_PARALLEL_FLASH,
1da177e4 440 CARD_TYPE_SPI_FLASH,
4d791aad 441 CARD_TYPE_EEPROM
1da177e4
LT		 442 } card_type;
443 int do_rx_crc; /* If we need to CRC incoming packets */
444 int probe_crc; /* set if we don't yet know */
445 int crc_ok_cnt, crc_ko_cnt; /* counters for probing */
446 u16 rx_desc_head;
447 u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous;
448 u16 tx_free_mem, tx_buff_head, tx_buff_tail;
4d791aad 449
1da177e4 450 u16 frag_seq, frag_len, frag_no;
4d791aad
CP		 451 u8 frag_source[6];
452
1da177e4
LT		 453 u8 wep_is_on, default_key, exclude_unencrypted, encryption_level;
454 u8 group_cipher_suite, pairwise_cipher_suite;
455 u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
4d791aad 456 int wep_key_len[MAX_ENCRYPTION_KEYS];
1da177e4
LT		 457 int use_wpa, radio_on_broken; /* firmware dependent stuff. */
458
459 u16 host_info_base;
4d791aad 460 struct host_info_struct {
1da177e4
LT		 461 /* NB this is matched to the hardware, don't change. */
462 u8 volatile int_status;
463 u8 volatile int_mask;
464 u8 volatile lockout_host;
465 u8 volatile lockout_mac;
466
467 u16 tx_buff_pos;
468 u16 tx_buff_size;
469 u16 tx_desc_pos;
470 u16 tx_desc_count;
471
472 u16 rx_buff_pos;
473 u16 rx_buff_size;
474 u16 rx_desc_pos;
475 u16 rx_desc_count;
4d791aad 476
1da177e4 477 u16 build_version;
4d791aad
CP		 478 u16 command_pos;
479
1da177e4
LT		 480 u16 major_version;
481 u16 minor_version;
4d791aad 482
1da177e4
LT		 483 u16 func_ctrl;
484 u16 mac_status;
485 u16 generic_IRQ_type;
486 u8 reserved[2];
487 } host_info;
488
4d791aad 489 enum {
1da177e4
LT		 490 STATION_STATE_SCANNING,
491 STATION_STATE_JOINNING,
492 STATION_STATE_AUTHENTICATING,
493 STATION_STATE_ASSOCIATING,
494 STATION_STATE_READY,
495 STATION_STATE_REASSOCIATING,
496 STATION_STATE_DOWN,
497 STATION_STATE_MGMT_ERROR
498 } station_state;
4d791aad 499
1da177e4
LT		 500 int operating_mode, power_mode;
501 time_t last_qual;
502 int beacons_this_sec;
503 int channel;
504 int reg_domain, config_reg_domain;
505 int tx_rate;
506 int auto_tx_rate;
507 int rts_threshold;
508 int frag_threshold;
509 int long_retry, short_retry;
510 int preamble;
511 int default_beacon_period, beacon_period, listen_interval;
4d791aad 512 int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum;
1da177e4
LT		 513 int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt;
514 enum {
515 SITE_SURVEY_IDLE,
516 SITE_SURVEY_IN_PROGRESS,
4d791aad 517 SITE_SURVEY_COMPLETED
1da177e4 518 } site_survey_state;
6e33e30d 519 unsigned long last_survey;
1da177e4
LT		 520
521 int station_was_associated, station_is_associated;
522 int fast_scan;
4d791aad 523
1da177e4
LT		 524 struct bss_info {
525 int channel;
526 int SSIDsize;
527 int RSSI;
528 int UsingWEP;
529 int preamble;
530 int beacon_period;
531 int BSStype;
532 u8 BSSID[6];
533 u8 SSID[MAX_SSID_LENGTH];
534 } BSSinfo[MAX_BSS_ENTRIES];
535 int BSS_list_entries, current_BSS;
4d791aad 536 int connect_to_any_BSS;
1da177e4
LT		 537 int SSID_size, new_SSID_size;
538 u8 CurrentBSSID[6], BSSID[6];
539 u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH];
540 u64 last_beacon_timestamp;
541 u8 rx_buf[MAX_WIRELESS_BODY];
1da177e4
LT		 542};
543
544static u8 atmel_basic_rates[4] = {0x82,0x84,0x0b,0x16};
545
546static const struct {
547 int reg_domain;
548 int min, max;
4d791aad 549 char *name;
1da177e4
LT		 550} channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" },
551 { REG_DOMAIN_DOC, 1, 11, "Canada" },
552 { REG_DOMAIN_ETSI, 1, 13, "Europe" },
553 { REG_DOMAIN_SPAIN, 10, 11, "Spain" },
4d791aad 554 { REG_DOMAIN_FRANCE, 10, 13, "France" },
1da177e4
LT		 555 { REG_DOMAIN_MKK, 14, 14, "MKK" },
556 { REG_DOMAIN_MKK1, 1, 14, "MKK1" },
557 { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} };
558
559static void build_wpa_mib(struct atmel_private *priv);
560static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
4d791aad 561static void atmel_copy_to_card(struct net_device *dev, u16 dest,
2f26e8af 562 const unsigned char *src, u16 len);
4d791aad
CP		 563static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
564 u16 src, u16 len);
1da177e4
LT		 565static void atmel_set_gcr(struct net_device *dev, u16 mask);
566static void atmel_clear_gcr(struct net_device *dev, u16 mask);
567static int atmel_lock_mac(struct atmel_private *priv);
568static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data);
569static void atmel_command_irq(struct atmel_private *priv);
570static int atmel_validate_channel(struct atmel_private *priv, int channel);
4d791aad 571static void atmel_management_frame(struct atmel_private *priv,
2c706002 572 struct ieee80211_hdr *header,
1da177e4
LT		 573 u16 frame_len, u8 rssi);
574static void atmel_management_timer(u_long a);
4d791aad
CP		 575static void atmel_send_command(struct atmel_private *priv, int command,
576 void *cmd, int cmd_size);
577static int atmel_send_command_wait(struct atmel_private *priv, int command,
578 void *cmd, int cmd_size);
579static void atmel_transmit_management_frame(struct atmel_private *priv,
2c706002 580 struct ieee80211_hdr *header,
1da177e4
LT		 581 u8 *body, int body_len);
582
583static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index);
4d791aad
CP		 584static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index,
585 u8 data);
586static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
587 u16 data);
588static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
589 u8 *data, int data_len);
590static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
591 u8 *data, int data_len);
1da177e4
LT		 592static void atmel_scan(struct atmel_private *priv, int specific_ssid);
593static void atmel_join_bss(struct atmel_private *priv, int bss_index);
594static void atmel_smooth_qual(struct atmel_private *priv);
595static void atmel_writeAR(struct net_device *dev, u16 data);
596static int probe_atmel_card(struct net_device *dev);
5c877fe5 597static int reset_atmel_card(struct net_device *dev);
1da177e4
LT		 598static void atmel_enter_state(struct atmel_private *priv, int new_state);
599int atmel_open (struct net_device *dev);
600
601static inline u16 atmel_hi(struct atmel_private *priv, u16 offset)
602{
603 return priv->host_info_base + offset;
604}
605
606static inline u16 atmel_co(struct atmel_private *priv, u16 offset)
607{
608 return priv->host_info.command_pos + offset;
609}
610
4d791aad 611static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc)
1da177e4
LT		 612{
613 return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset;
614}
615
4d791aad 616static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc)
1da177e4
LT		 617{
618 return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset;
619}
620
621static inline u8 atmel_read8(struct net_device *dev, u16 offset)
622{
623 return inb(dev->base_addr + offset);
624}
625
626static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data)
627{
628 outb(data, dev->base_addr + offset);
629}
630
631static inline u16 atmel_read16(struct net_device *dev, u16 offset)
632{
633 return inw(dev->base_addr + offset);
634}
635
636static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data)
637{
638 outw(data, dev->base_addr + offset);
639}
640
641static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos)
642{
4d791aad 643 atmel_writeAR(priv->dev, pos);
1da177e4
LT		 644 return atmel_read8(priv->dev, DR);
645}
646
647static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data)
648{
4d791aad 649 atmel_writeAR(priv->dev, pos);
1da177e4
LT		 650 atmel_write8(priv->dev, DR, data);
651}
652
653static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos)
654{
4d791aad 655 atmel_writeAR(priv->dev, pos);
1da177e4
LT		 656 return atmel_read16(priv->dev, DR);
657}
658
659static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data)
660{
4d791aad 661 atmel_writeAR(priv->dev, pos);
1da177e4
LT		 662 atmel_write16(priv->dev, DR, data);
663}
664
665static const struct iw_handler_def atmel_handler_def;
666
667static void tx_done_irq(struct atmel_private *priv)
668{
669 int i;
670
4d791aad 671 for (i = 0;
1da177e4
LT		 672 atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE &&
673 i < priv->host_info.tx_desc_count;
674 i++) {
1da177e4
LT		 675 u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head));
676 u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head));
677 u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head));
678
679 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0);
680
681 priv->tx_free_mem += msdu_size;
682 priv->tx_desc_free++;
683
684 if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size))
685 priv->tx_buff_head = 0;
686 else
687 priv->tx_buff_head += msdu_size;
4d791aad 688
1da177e4 689 if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1))
4d791aad 690 priv->tx_desc_head++ ;
1da177e4
LT		 691 else
692 priv->tx_desc_head = 0;
4d791aad 693
1da177e4
LT		 694 if (type == TX_PACKET_TYPE_DATA) {
695 if (status == TX_STATUS_SUCCESS)
736bc924 696 priv->dev->stats.tx_packets++;
4d791aad 697 else
736bc924 698 priv->dev->stats.tx_errors++;
1da177e4
LT		 699 netif_wake_queue(priv->dev);
700 }
701 }
702}
703
704static u16 find_tx_buff(struct atmel_private *priv, u16 len)
705{
706 u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail;
707
4d791aad 708 if (priv->tx_desc_free == 3 || priv->tx_free_mem < len)
1da177e4 709 return 0;
4d791aad 710
1da177e4
LT		 711 if (bottom_free >= len)
712 return priv->host_info.tx_buff_pos + priv->tx_buff_tail;
4d791aad 713
1da177e4
LT		 714 if (priv->tx_free_mem - bottom_free >= len) {
715 priv->tx_buff_tail = 0;
716 return priv->host_info.tx_buff_pos;
717 }
4d791aad 718
1da177e4
LT		 719 return 0;
720}
721
4d791aad
CP		 722static void tx_update_descriptor(struct atmel_private *priv, int is_bcast,
723 u16 len, u16 buff, u8 type)
1da177e4
LT		 724{
725 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff);
726 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len);
727 if (!priv->use_wpa)
728 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len);
729 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type);
730 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate);
731 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0);
732 if (priv->use_wpa) {
733 int cipher_type, cipher_length;
734 if (is_bcast) {
735 cipher_type = priv->group_cipher_suite;
4d791aad
CP		 736 if (cipher_type == CIPHER_SUITE_WEP_64 ||
737 cipher_type == CIPHER_SUITE_WEP_128)
1da177e4
LT		 738 cipher_length = 8;
739 else if (cipher_type == CIPHER_SUITE_TKIP)
740 cipher_length = 12;
741 else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 ||
742 priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) {
743 cipher_type = priv->pairwise_cipher_suite;
744 cipher_length = 8;
745 } else {
746 cipher_type = CIPHER_SUITE_NONE;
747 cipher_length = 0;
748 }
749 } else {
750 cipher_type = priv->pairwise_cipher_suite;
4d791aad
CP		 751 if (cipher_type == CIPHER_SUITE_WEP_64 ||
752 cipher_type == CIPHER_SUITE_WEP_128)
1da177e4
LT		 753 cipher_length = 8;
754 else if (cipher_type == CIPHER_SUITE_TKIP)
755 cipher_length = 12;
756 else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 ||
757 priv->group_cipher_suite == CIPHER_SUITE_WEP_128) {
758 cipher_type = priv->group_cipher_suite;
759 cipher_length = 8;
760 } else {
761 cipher_type = CIPHER_SUITE_NONE;
762 cipher_length = 0;
763 }
764 }
4d791aad 765
1da177e4 766 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail),
4d791aad 767 cipher_type);
1da177e4
LT		 768 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail),
769 cipher_length);
770 }
771 atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L);
772 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN);
773 if (priv->tx_desc_previous != priv->tx_desc_tail)
774 atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0);
775 priv->tx_desc_previous = priv->tx_desc_tail;
4d791aad 776 if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1))
1da177e4
LT		 777 priv->tx_desc_tail++;
778 else
779 priv->tx_desc_tail = 0;
780 priv->tx_desc_free--;
781 priv->tx_free_mem -= len;
1da177e4
LT		 782}
783
4d791aad 784static int start_tx(struct sk_buff *skb, struct net_device *dev)
1da177e4 785{
00a5ebf8 786 static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
1da177e4 787 struct atmel_private *priv = netdev_priv(dev);
2c706002 788 struct ieee80211_hdr header;
1da177e4
LT		 789 unsigned long flags;
790 u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
4d791aad
CP		 791
792 if (priv->card && priv->present_callback &&
1da177e4 793 !(*priv->present_callback)(priv->card)) {
736bc924 794 dev->stats.tx_errors++;
1da177e4
LT		 795 dev_kfree_skb(skb);
796 return 0;
797 }
4d791aad 798
1da177e4 799 if (priv->station_state != STATION_STATE_READY) {
736bc924 800 dev->stats.tx_errors++;
1da177e4
LT		 801 dev_kfree_skb(skb);
802 return 0;
803 }
4d791aad 804
1da177e4 805 /* first ensure the timer func cannot run */
4d791aad 806 spin_lock_bh(&priv->timerlock);
1da177e4 807 /* then stop the hardware ISR */
4d791aad 808 spin_lock_irqsave(&priv->irqlock, flags);
1da177e4 809 /* nb doing the above in the opposite order will deadlock */
4d791aad 810
1da177e4 811 /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the
4d791aad
CP		 812 12 first bytes (containing DA/SA) and put them in the appropriate
813 fields of the Wireless Header. Thus the packet length is then the
814 initial + 18 (+30-12) */
815
1da177e4 816 if (!(buff = find_tx_buff(priv, len + 18))) {
736bc924 817 dev->stats.tx_dropped++;
1da177e4
LT		 818 spin_unlock_irqrestore(&priv->irqlock, flags);
819 spin_unlock_bh(&priv->timerlock);
820 netif_stop_queue(dev);
821 return 1;
822 }
4d791aad 823
b453872c 824 frame_ctl = IEEE80211_FTYPE_DATA;
1da177e4 825 header.duration_id = 0;
2c706002 826 header.seq_ctrl = 0;
1da177e4 827 if (priv->wep_is_on)
f13baae4 828 frame_ctl |= IEEE80211_FCTL_PROTECTED;
1da177e4 829 if (priv->operating_mode == IW_MODE_ADHOC) {
d626f62b 830 skb_copy_from_linear_data(skb, &header.addr1, 6);
1da177e4
LT		 831 memcpy(&header.addr2, dev->dev_addr, 6);
832 memcpy(&header.addr3, priv->BSSID, 6);
833 } else {
b453872c 834 frame_ctl |= IEEE80211_FCTL_TODS;
1da177e4
LT		 835 memcpy(&header.addr1, priv->CurrentBSSID, 6);
836 memcpy(&header.addr2, dev->dev_addr, 6);
d626f62b 837 skb_copy_from_linear_data(skb, &header.addr3, 6);
1da177e4 838 }
4d791aad 839
1da177e4
LT		 840 if (priv->use_wpa)
841 memcpy(&header.addr4, SNAP_RFC1024, 6);
842
2c706002 843 header.frame_control = cpu_to_le16(frame_ctl);
1da177e4
LT		 844 /* Copy the wireless header into the card */
845 atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE);
846 /* Copy the packet sans its 802.3 header addresses which have been replaced */
847 atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12);
848 priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE;
4d791aad 849
1da177e4
LT		 850 /* low bit of first byte of destination tells us if broadcast */
851 tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA);
852 dev->trans_start = jiffies;
736bc924 853 dev->stats.tx_bytes += len;
4d791aad 854
1da177e4
LT		 855 spin_unlock_irqrestore(&priv->irqlock, flags);
856 spin_unlock_bh(&priv->timerlock);
857 dev_kfree_skb(skb);
4d791aad
CP		 858
859 return 0;
1da177e4
LT		 860}
861
4d791aad 862static void atmel_transmit_management_frame(struct atmel_private *priv,
2c706002 863 struct ieee80211_hdr *header,
1da177e4
LT		 864 u8 *body, int body_len)
865{
866 u16 buff;
4d791aad
CP		 867 int len = MGMT_FRAME_BODY_OFFSET + body_len;
868
869 if (!(buff = find_tx_buff(priv, len)))
1da177e4
LT		 870 return;
871
872 atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET);
873 atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len);
874 priv->tx_buff_tail += len;
875 tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT);
876}
4d791aad
CP		 877
878static void fast_rx_path(struct atmel_private *priv,
2c706002 879 struct ieee80211_hdr *header,
1da177e4
LT		 880 u16 msdu_size, u16 rx_packet_loc, u32 crc)
881{
882 /* fast path: unfragmented packet copy directly into skbuf */
4d791aad
CP		 883 u8 mac4[6];
884 struct sk_buff *skb;
1da177e4 885 unsigned char *skbp;
4d791aad 886
1da177e4
LT		 887 /* get the final, mac 4 header field, this tells us encapsulation */
888 atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6);
889 msdu_size -= 6;
4d791aad 890
1da177e4
LT		 891 if (priv->do_rx_crc) {
892 crc = crc32_le(crc, mac4, 6);
893 msdu_size -= 4;
894 }
4d791aad 895
1da177e4 896 if (!(skb = dev_alloc_skb(msdu_size + 14))) {
736bc924 897 priv->dev->stats.rx_dropped++;
1da177e4
LT		 898 return;
899 }
900
901 skb_reserve(skb, 2);
902 skbp = skb_put(skb, msdu_size + 12);
903 atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size);
4d791aad 904
1da177e4
LT		 905 if (priv->do_rx_crc) {
906 u32 netcrc;
907 crc = crc32_le(crc, skbp + 12, msdu_size);
908 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4);
909 if ((crc ^ 0xffffffff) != netcrc) {
736bc924 910 priv->dev->stats.rx_crc_errors++;
1da177e4
LT		 911 dev_kfree_skb(skb);
912 return;
913 }
914 }
4d791aad 915
1da177e4 916 memcpy(skbp, header->addr1, 6); /* destination address */
2c706002 917 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
1da177e4
LT		 918 memcpy(&skbp[6], header->addr3, 6);
919 else
920 memcpy(&skbp[6], header->addr2, 6); /* source address */
4d791aad 921
1da177e4 922 skb->protocol = eth_type_trans(skb, priv->dev);
4d791aad 923 skb->ip_summed = CHECKSUM_NONE;
1da177e4 924 netif_rx(skb);
736bc924
PZ		 925 priv->dev->stats.rx_bytes += 12 + msdu_size;
926 priv->dev->stats.rx_packets++;
1da177e4
LT		 927}
928
929/* Test to see if the packet in card memory at packet_loc has a valid CRC
4d791aad
CP		 930 It doesn't matter that this is slow: it is only used to proble the first few
931 packets. */
1da177e4
LT		 932static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size)
933{
934 int i = msdu_size - 4;
935 u32 netcrc, crc = 0xffffffff;
936
937 if (msdu_size < 4)
938 return 0;
939
940 atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4);
4d791aad 941
1da177e4
LT		 942 atmel_writeAR(priv->dev, packet_loc);
943 while (i--) {
944 u8 octet = atmel_read8(priv->dev, DR);
945 crc = crc32_le(crc, &octet, 1);
946 }
947
948 return (crc ^ 0xffffffff) == netcrc;
949}
950
4d791aad 951static void frag_rx_path(struct atmel_private *priv,
2c706002 952 struct ieee80211_hdr *header,
4d791aad
CP		 953 u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no,
954 u8 frag_no, int more_frags)
1da177e4 955{
4d791aad 956 u8 mac4[6];
1da177e4
LT		 957 u8 source[6];
958 struct sk_buff *skb;
959
2c706002 960 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
1da177e4
LT		 961 memcpy(source, header->addr3, 6);
962 else
4d791aad
CP		 963 memcpy(source, header->addr2, 6);
964
1da177e4 965 rx_packet_loc += 24; /* skip header */
4d791aad 966
1da177e4
LT		 967 if (priv->do_rx_crc)
968 msdu_size -= 4;
969
970 if (frag_no == 0) { /* first fragment */
971 atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6);
972 msdu_size -= 6;
973 rx_packet_loc += 6;
974
4d791aad 975 if (priv->do_rx_crc)
1da177e4 976 crc = crc32_le(crc, mac4, 6);
4d791aad 977
1da177e4
LT		 978 priv->frag_seq = seq_no;
979 priv->frag_no = 1;
980 priv->frag_len = msdu_size;
4d791aad 981 memcpy(priv->frag_source, source, 6);
1da177e4
LT		 982 memcpy(&priv->rx_buf[6], source, 6);
983 memcpy(priv->rx_buf, header->addr1, 6);
4d791aad 984
1da177e4
LT		 985 atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size);
986
987 if (priv->do_rx_crc) {
988 u32 netcrc;
989 crc = crc32_le(crc, &priv->rx_buf[12], msdu_size);
990 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
991 if ((crc ^ 0xffffffff) != netcrc) {
736bc924 992 priv->dev->stats.rx_crc_errors++;
1da177e4
LT		 993 memset(priv->frag_source, 0xff, 6);
994 }
995 }
4d791aad 996
1da177e4
LT		 997 } else if (priv->frag_no == frag_no &&
998 priv->frag_seq == seq_no &&
999 memcmp(priv->frag_source, source, 6) == 0) {
4d791aad
CP		 1000
1001 atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len],
1da177e4
LT		 1002 rx_packet_loc, msdu_size);
1003 if (priv->do_rx_crc) {
1004 u32 netcrc;
4d791aad
CP		 1005 crc = crc32_le(crc,
1006 &priv->rx_buf[12 + priv->frag_len],
1da177e4
LT		 1007 msdu_size);
1008 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
1009 if ((crc ^ 0xffffffff) != netcrc) {
736bc924 1010 priv->dev->stats.rx_crc_errors++;
1da177e4
LT		 1011 memset(priv->frag_source, 0xff, 6);
1012 more_frags = 1; /* don't send broken assembly */
1013 }
1014 }
4d791aad 1015
1da177e4
LT		 1016 priv->frag_len += msdu_size;
1017 priv->frag_no++;
1018
1019 if (!more_frags) { /* last one */
1020 memset(priv->frag_source, 0xff, 6);
1021 if (!(skb = dev_alloc_skb(priv->frag_len + 14))) {
736bc924 1022 priv->dev->stats.rx_dropped++;
1da177e4
LT		 1023 } else {
1024 skb_reserve(skb, 2);
4d791aad 1025 memcpy(skb_put(skb, priv->frag_len + 12),
1da177e4
LT		 1026 priv->rx_buf,
1027 priv->frag_len + 12);
1da177e4 1028 skb->protocol = eth_type_trans(skb, priv->dev);
4d791aad 1029 skb->ip_summed = CHECKSUM_NONE;
1da177e4 1030 netif_rx(skb);
736bc924
PZ		 1031 priv->dev->stats.rx_bytes += priv->frag_len + 12;
1032 priv->dev->stats.rx_packets++;
1da177e4
LT		 1033 }
1034 }
1da177e4
LT		 1035 } else
1036 priv->wstats.discard.fragment++;
1037}
4d791aad 1038
1da177e4
LT		 1039static void rx_done_irq(struct atmel_private *priv)
1040{
1041 int i;
2c706002 1042 struct ieee80211_hdr header;
4d791aad
CP		 1043
1044 for (i = 0;
1da177e4
LT		 1045 atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID &&
1046 i < priv->host_info.rx_desc_count;
1047 i++) {
4d791aad 1048
1da177e4
LT		 1049 u16 msdu_size, rx_packet_loc, frame_ctl, seq_control;
1050 u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head));
1051 u32 crc = 0xffffffff;
4d791aad 1052
1da177e4
LT		 1053 if (status != RX_STATUS_SUCCESS) {
1054 if (status == 0xc1) /* determined by experiment */
1055 priv->wstats.discard.nwid++;
1056 else
736bc924 1057 priv->dev->stats.rx_errors++;
1da177e4
LT		 1058 goto next;
1059 }
1060
1061 msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head));
1062 rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head));
4d791aad 1063
1da177e4 1064 if (msdu_size < 30) {
736bc924 1065 priv->dev->stats.rx_errors++;
1da177e4
LT		 1066 goto next;
1067 }
4d791aad 1068
2c706002 1069 /* Get header as far as end of seq_ctrl */
1da177e4 1070 atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24);
2c706002
JB		 1071 frame_ctl = le16_to_cpu(header.frame_control);
1072 seq_control = le16_to_cpu(header.seq_ctrl);
1da177e4 1073
4d791aad
CP		 1074 /* probe for CRC use here if needed once five packets have
1075 arrived with the same crc status, we assume we know what's
1076 happening and stop probing */
1da177e4 1077 if (priv->probe_crc) {
f13baae4 1078 if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) {
1da177e4
LT		 1079 priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size);
1080 } else {
1081 priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24);
1082 }
1083 if (priv->do_rx_crc) {
1084 if (priv->crc_ok_cnt++ > 5)
1085 priv->probe_crc = 0;
1086 } else {
1087 if (priv->crc_ko_cnt++ > 5)
1088 priv->probe_crc = 0;
1089 }
1090 }
4d791aad 1091
1da177e4 1092 /* don't CRC header when WEP in use */
f13baae4 1093 if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) {
1da177e4
LT		 1094 crc = crc32_le(0xffffffff, (unsigned char *)&header, 24);
1095 }
1096 msdu_size -= 24; /* header */
1097
4d791aad 1098 if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
b453872c
JG		 1099 int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS;
1100 u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG;
1101 u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4;
4d791aad
CP		 1102
1103 if (!more_fragments && packet_fragment_no == 0) {
1da177e4
LT		 1104 fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc);
1105 } else {
1106 frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc,
1107 packet_sequence_no, packet_fragment_no, more_fragments);
1108 }
1109 }
4d791aad 1110
b453872c 1111 if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
1da177e4
LT		 1112 /* copy rest of packet into buffer */
1113 atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size);
4d791aad 1114
1da177e4
LT		 1115 /* we use the same buffer for frag reassembly and control packets */
1116 memset(priv->frag_source, 0xff, 6);
4d791aad 1117
1da177e4
LT		 1118 if (priv->do_rx_crc) {
1119 /* last 4 octets is crc */
1120 msdu_size -= 4;
1121 crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size);
1122 if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) {
736bc924 1123 priv->dev->stats.rx_crc_errors++;
1da177e4
LT		 1124 goto next;
1125 }
1126 }
1127
1128 atmel_management_frame(priv, &header, msdu_size,
1129 atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head)));
4d791aad 1130 }
1da177e4 1131
4d791aad 1132next:
1da177e4 1133 /* release descriptor */
4d791aad
CP		 1134 atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED);
1135
1da177e4 1136 if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1))
4d791aad 1137 priv->rx_desc_head++;
1da177e4
LT		 1138 else
1139 priv->rx_desc_head = 0;
1140 }
4d791aad 1141}
1da177e4 1142
7d12e780 1143static irqreturn_t service_interrupt(int irq, void *dev_id)
1da177e4
LT		 1144{
1145 struct net_device *dev = (struct net_device *) dev_id;
1146 struct atmel_private *priv = netdev_priv(dev);
1147 u8 isr;
1148 int i = -1;
4d791aad 1149 static u8 irq_order[] = {
1da177e4
LT		 1150 ISR_OUT_OF_RANGE,
1151 ISR_RxCOMPLETE,
1152 ISR_TxCOMPLETE,
1153 ISR_RxFRAMELOST,
1154 ISR_FATAL_ERROR,
1155 ISR_COMMAND_COMPLETE,
1156 ISR_IBSS_MERGE,
1157 ISR_GENERIC_IRQ
1158 };
1da177e4 1159
4d791aad 1160 if (priv->card && priv->present_callback &&
1da177e4
LT		 1161 !(*priv->present_callback)(priv->card))
1162 return IRQ_HANDLED;
1163
1164 /* In this state upper-level code assumes it can mess with
1165 the card unhampered by interrupts which may change register state.
1166 Note that even though the card shouldn't generate interrupts
4d791aad 1167 the inturrupt line may be shared. This allows card setup
1da177e4
LT		 1168 to go on without disabling interrupts for a long time. */
1169 if (priv->station_state == STATION_STATE_DOWN)
1170 return IRQ_NONE;
4d791aad 1171
1da177e4
LT		 1172 atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */
1173
1174 while (1) {
1175 if (!atmel_lock_mac(priv)) {
1176 /* failed to contact card */
1177 printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
1178 return IRQ_HANDLED;
1179 }
4d791aad 1180
1da177e4
LT		 1181 isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
1182 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
4d791aad 1183
1da177e4
LT		 1184 if (!isr) {
1185 atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */
1186 return i == -1 ? IRQ_NONE : IRQ_HANDLED;
1187 }
4d791aad 1188
1da177e4 1189 atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */
4d791aad 1190
b4341135 1191 for (i = 0; i < ARRAY_SIZE(irq_order); i++)
1da177e4
LT		 1192 if (isr & irq_order[i])
1193 break;
4d791aad 1194
1da177e4
LT		 1195 if (!atmel_lock_mac(priv)) {
1196 /* failed to contact card */
1197 printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
1198 return IRQ_HANDLED;
1199 }
4d791aad 1200
1da177e4
LT		 1201 isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
1202 isr ^= irq_order[i];
1203 atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr);
1204 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
4d791aad 1205
1da177e4 1206 switch (irq_order[i]) {
4d791aad
CP		 1207
1208 case ISR_OUT_OF_RANGE:
1209 if (priv->operating_mode == IW_MODE_INFRA &&
1da177e4
LT		 1210 priv->station_state == STATION_STATE_READY) {
1211 priv->station_is_associated = 0;
1212 atmel_scan(priv, 1);
1213 }
1214 break;
1215
1216 case ISR_RxFRAMELOST:
1217 priv->wstats.discard.misc++;
1218 /* fall through */
1219 case ISR_RxCOMPLETE:
4d791aad 1220 rx_done_irq(priv);
1da177e4 1221 break;
4d791aad 1222
1da177e4 1223 case ISR_TxCOMPLETE:
4d791aad 1224 tx_done_irq(priv);
1da177e4 1225 break;
4d791aad 1226
1da177e4
LT		 1227 case ISR_FATAL_ERROR:
1228 printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name);
1229 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
1230 break;
4d791aad
CP		 1231
1232 case ISR_COMMAND_COMPLETE:
1da177e4
LT		 1233 atmel_command_irq(priv);
1234 break;
1235
1236 case ISR_IBSS_MERGE:
4d791aad 1237 atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
1da177e4
LT		 1238 priv->CurrentBSSID, 6);
1239 /* The WPA stuff cares about the current AP address */
1240 if (priv->use_wpa)
1241 build_wpa_mib(priv);
1242 break;
1243 case ISR_GENERIC_IRQ:
1244 printk(KERN_INFO "%s: Generic_irq received.\n", dev->name);
1245 break;
1246 }
4d791aad 1247 }
1da177e4
LT		 1248}
1249
4d791aad 1250static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev)
1da177e4
LT		 1251{
1252 struct atmel_private *priv = netdev_priv(dev);
1253
4d791aad 1254 /* update the link quality here in case we are seeing no beacons
1da177e4
LT		 1255 at all to drive the process */
1256 atmel_smooth_qual(priv);
4d791aad 1257
1da177e4
LT		 1258 priv->wstats.status = priv->station_state;
1259
1260 if (priv->operating_mode == IW_MODE_INFRA) {
1261 if (priv->station_state != STATION_STATE_READY) {
1262 priv->wstats.qual.qual = 0;
1263 priv->wstats.qual.level = 0;
1264 priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID
1265 | IW_QUAL_LEVEL_INVALID);
1266 }
1267 priv->wstats.qual.noise = 0;
1268 priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1269 } else {
1270 /* Quality levels cannot be determined in ad-hoc mode,
1271 because we can 'hear' more that one remote station. */
1272 priv->wstats.qual.qual = 0;
1273 priv->wstats.qual.level = 0;
1274 priv->wstats.qual.noise = 0;
1275 priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID
1276 | IW_QUAL_LEVEL_INVALID
1277 | IW_QUAL_NOISE_INVALID;
1278 priv->wstats.miss.beacon = 0;
1279 }
4d791aad
CP		 1280
1281 return &priv->wstats;
1da177e4
LT		 1282}
1283
1284static int atmel_change_mtu(struct net_device *dev, int new_mtu)
1285{
1286 if ((new_mtu < 68) || (new_mtu > 2312))
1287 return -EINVAL;
1288 dev->mtu = new_mtu;
1289 return 0;
1290}
1291
1292static int atmel_set_mac_address(struct net_device *dev, void *p)
1293{
1294 struct sockaddr *addr = p;
4d791aad 1295
1da177e4
LT		 1296 memcpy (dev->dev_addr, addr->sa_data, dev->addr_len);
1297 return atmel_open(dev);
1298}
1299
1300EXPORT_SYMBOL(atmel_open);
1301
4d791aad 1302int atmel_open(struct net_device *dev)
1da177e4
LT		 1303{
1304 struct atmel_private *priv = netdev_priv(dev);
3c34a5d8 1305 int i, channel, err;
1da177e4
LT		 1306
1307 /* any scheduled timer is no longer needed and might screw things up.. */
1308 del_timer_sync(&priv->management_timer);
4d791aad 1309
1da177e4
LT		 1310 /* Interrupts will not touch the card once in this state... */
1311 priv->station_state = STATION_STATE_DOWN;
1312
1313 if (priv->new_SSID_size) {
1314 memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size);
1315 priv->SSID_size = priv->new_SSID_size;
1316 priv->new_SSID_size = 0;
1317 }
1318 priv->BSS_list_entries = 0;
1319
1320 priv->AuthenticationRequestRetryCnt = 0;
1321 priv->AssociationRequestRetryCnt = 0;
1322 priv->ReAssociationRequestRetryCnt = 0;
1323 priv->CurrentAuthentTransactionSeqNum = 0x0001;
1324 priv->ExpectedAuthentTransactionSeqNum = 0x0002;
1325
1326 priv->site_survey_state = SITE_SURVEY_IDLE;
1327 priv->station_is_associated = 0;
1328
3c34a5d8
DW		 1329 err = reset_atmel_card(dev);
1330 if (err)
1331 return err;
1da177e4
LT		 1332
1333 if (priv->config_reg_domain) {
1334 priv->reg_domain = priv->config_reg_domain;
1335 atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain);
1336 } else {
1337 priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS);
b4341135 1338 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1da177e4
LT		 1339 if (priv->reg_domain == channel_table[i].reg_domain)
1340 break;
b4341135 1341 if (i == ARRAY_SIZE(channel_table)) {
1da177e4
LT		 1342 priv->reg_domain = REG_DOMAIN_MKK1;
1343 printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name);
4d791aad 1344 }
1da177e4 1345 }
4d791aad 1346
1da177e4
LT		 1347 if ((channel = atmel_validate_channel(priv, priv->channel)))
1348 priv->channel = channel;
1349
4d791aad
CP		 1350 /* this moves station_state on.... */
1351 atmel_scan(priv, 1);
1da177e4
LT		 1352
1353 atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */
1354 return 0;
1355}
1356
4d791aad 1357static int atmel_close(struct net_device *dev)
1da177e4
LT		 1358{
1359 struct atmel_private *priv = netdev_priv(dev);
4d791aad 1360
9a6301c1
DW		 1361 /* Send event to userspace that we are disassociating */
1362 if (priv->station_state == STATION_STATE_READY) {
1363 union iwreq_data wrqu;
1364
1365 wrqu.data.length = 0;
1366 wrqu.data.flags = 0;
1367 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1368 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1369 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1370 }
1371
1da177e4 1372 atmel_enter_state(priv, STATION_STATE_DOWN);
4d791aad
CP		 1373
1374 if (priv->bus_type == BUS_TYPE_PCCARD)
1da177e4
LT		 1375 atmel_write16(dev, GCR, 0x0060);
1376 atmel_write16(dev, GCR, 0x0040);
1377 return 0;
1378}
1379
1380static int atmel_validate_channel(struct atmel_private *priv, int channel)
1381{
1382 /* check that channel is OK, if so return zero,
1383 else return suitable default channel */
1384 int i;
1385
b4341135 1386 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1da177e4
LT		 1387 if (priv->reg_domain == channel_table[i].reg_domain) {
1388 if (channel >= channel_table[i].min &&
1389 channel <= channel_table[i].max)
1390 return 0;
1391 else
1392 return channel_table[i].min;
1393 }
1394 return 0;
1395}
1396
1397static int atmel_proc_output (char *buf, struct atmel_private *priv)
1398{
1399 int i;
1400 char *p = buf;
1401 char *s, *r, *c;
4d791aad
CP		 1402
1403 p += sprintf(p, "Driver version:\t\t%d.%d\n",
1404 DRIVER_MAJOR, DRIVER_MINOR);
1405
1da177e4 1406 if (priv->station_state != STATION_STATE_DOWN) {
4d791aad
CP		 1407 p += sprintf(p, "Firmware version:\t%d.%d build %d\n"
1408 "Firmware location:\t",
1da177e4
LT		 1409 priv->host_info.major_version,
1410 priv->host_info.minor_version,
1411 priv->host_info.build_version);
4d791aad
CP		 1412
1413 if (priv->card_type != CARD_TYPE_EEPROM)
1da177e4 1414 p += sprintf(p, "on card\n");
4d791aad
CP		 1415 else if (priv->firmware)
1416 p += sprintf(p, "%s loaded by host\n",
1417 priv->firmware_id);
1da177e4 1418 else
4d791aad
CP		 1419 p += sprintf(p, "%s loaded by hotplug\n",
1420 priv->firmware_id);
1421
1422 switch (priv->card_type) {
1da177e4
LT		 1423 case CARD_TYPE_PARALLEL_FLASH: c = "Parallel flash"; break;
1424 case CARD_TYPE_SPI_FLASH: c = "SPI flash\n"; break;
1425 case CARD_TYPE_EEPROM: c = "EEPROM"; break;
1426 default: c = "<unknown>";
1427 }
1428
1da177e4 1429 r = "<unknown>";
b4341135 1430 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1da177e4
LT		 1431 if (priv->reg_domain == channel_table[i].reg_domain)
1432 r = channel_table[i].name;
4d791aad 1433
1da177e4
LT		 1434 p += sprintf(p, "MAC memory type:\t%s\n", c);
1435 p += sprintf(p, "Regulatory domain:\t%s\n", r);
4d791aad 1436 p += sprintf(p, "Host CRC checking:\t%s\n",
1da177e4
LT		 1437 priv->do_rx_crc ? "On" : "Off");
1438 p += sprintf(p, "WPA-capable firmware:\t%s\n",
1439 priv->use_wpa ? "Yes" : "No");
1440 }
4d791aad 1441
1da177e4
LT		 1442 switch(priv->station_state) {
1443 case STATION_STATE_SCANNING: s = "Scanning"; break;
1444 case STATION_STATE_JOINNING: s = "Joining"; break;
1445 case STATION_STATE_AUTHENTICATING: s = "Authenticating"; break;
1446 case STATION_STATE_ASSOCIATING: s = "Associating"; break;
1447 case STATION_STATE_READY: s = "Ready"; break;
1448 case STATION_STATE_REASSOCIATING: s = "Reassociating"; break;
1449 case STATION_STATE_MGMT_ERROR: s = "Management error"; break;
1450 case STATION_STATE_DOWN: s = "Down"; break;
1451 default: s = "<unknown>";
1452 }
4d791aad 1453
1da177e4 1454 p += sprintf(p, "Current state:\t\t%s\n", s);
4d791aad 1455 return p - buf;
1da177e4
LT		 1456}
1457
1458static int atmel_read_proc(char *page, char **start, off_t off,
1459 int count, int *eof, void *data)
1460{
1461 struct atmel_private *priv = data;
1462 int len = atmel_proc_output (page, priv);
1463 if (len <= off+count) *eof = 1;
1464 *start = page + off;
1465 len -= off;
1466 if (len>count) len = count;
1467 if (len<0) len = 0;
1468 return len;
1469}
1470
4d791aad
CP		 1471struct net_device *init_atmel_card(unsigned short irq, unsigned long port,
1472 const AtmelFWType fw_type,
1473 struct device *sys_dev,
1474 int (*card_present)(void *), void *card)
1da177e4 1475{
5bc4c36d 1476 struct proc_dir_entry *ent;
1da177e4
LT		 1477 struct net_device *dev;
1478 struct atmel_private *priv;
1479 int rc;
1480
1481 /* Create the network device object. */
1482 dev = alloc_etherdev(sizeof(*priv));
1483 if (!dev) {
4d791aad 1484 printk(KERN_ERR "atmel: Couldn't alloc_etherdev\n");
1da177e4
LT		 1485 return NULL;
1486 }
1487 if (dev_alloc_name(dev, dev->name) < 0) {
4d791aad 1488 printk(KERN_ERR "atmel: Couldn't get name!\n");
1da177e4
LT		 1489 goto err_out_free;
1490 }
1491
1492 priv = netdev_priv(dev);
1493 priv->dev = dev;
1494 priv->sys_dev = sys_dev;
1495 priv->present_callback = card_present;
1496 priv->card = card;
1497 priv->firmware = NULL;
1498 priv->firmware_id[0] = '\0';
1499 priv->firmware_type = fw_type;
1500 if (firmware) /* module parameter */
1501 strcpy(priv->firmware_id, firmware);
1502 priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI;
1503 priv->station_state = STATION_STATE_DOWN;
1504 priv->do_rx_crc = 0;
1505 /* For PCMCIA cards, some chips need CRC, some don't
1506 so we have to probe. */
1507 if (priv->bus_type == BUS_TYPE_PCCARD) {
1508 priv->probe_crc = 1;
1509 priv->crc_ok_cnt = priv->crc_ko_cnt = 0;
1510 } else
1511 priv->probe_crc = 0;
1da177e4
LT		 1512 priv->last_qual = jiffies;
1513 priv->last_beacon_timestamp = 0;
1514 memset(priv->frag_source, 0xff, sizeof(priv->frag_source));
1515 memset(priv->BSSID, 0, 6);
1516 priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */
1517 priv->station_was_associated = 0;
4d791aad 1518
1da177e4
LT		 1519 priv->last_survey = jiffies;
1520 priv->preamble = LONG_PREAMBLE;
1521 priv->operating_mode = IW_MODE_INFRA;
1522 priv->connect_to_any_BSS = 0;
1523 priv->config_reg_domain = 0;
1524 priv->reg_domain = 0;
1525 priv->tx_rate = 3;
1526 priv->auto_tx_rate = 1;
1527 priv->channel = 4;
1528 priv->power_mode = 0;
1529 priv->SSID[0] = '\0';
1530 priv->SSID_size = 0;
1531 priv->new_SSID_size = 0;
1532 priv->frag_threshold = 2346;
1533 priv->rts_threshold = 2347;
1534 priv->short_retry = 7;
1535 priv->long_retry = 4;
1536
1537 priv->wep_is_on = 0;
1538 priv->default_key = 0;
1539 priv->encryption_level = 0;
1540 priv->exclude_unencrypted = 0;
1541 priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1542 priv->use_wpa = 0;
1543 memset(priv->wep_keys, 0, sizeof(priv->wep_keys));
1544 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1545
1546 priv->default_beacon_period = priv->beacon_period = 100;
1547 priv->listen_interval = 1;
1548
1549 init_timer(&priv->management_timer);
1550 spin_lock_init(&priv->irqlock);
1551 spin_lock_init(&priv->timerlock);
1552 priv->management_timer.function = atmel_management_timer;
1553 priv->management_timer.data = (unsigned long) dev;
4d791aad 1554
1da177e4
LT		 1555 dev->open = atmel_open;
1556 dev->stop = atmel_close;
1557 dev->change_mtu = atmel_change_mtu;
1558 dev->set_mac_address = atmel_set_mac_address;
1559 dev->hard_start_xmit = start_tx;
1da177e4
LT		 1560 dev->wireless_handlers = (struct iw_handler_def *)&atmel_handler_def;
1561 dev->do_ioctl = atmel_ioctl;
1562 dev->irq = irq;
1563 dev->base_addr = port;
4d791aad 1564
1da177e4 1565 SET_NETDEV_DEV(dev, sys_dev);
4d791aad 1566
1fb9df5d 1567 if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) {
4d791aad 1568 printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc);
1da177e4
LT		 1569 goto err_out_free;
1570 }
1571
4d791aad 1572 if (!request_region(dev->base_addr, 32,
b16a228d 1573 priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) {
1da177e4
LT		 1574 goto err_out_irq;
1575 }
4d791aad 1576
1da177e4
LT		 1577 if (register_netdev(dev))
1578 goto err_out_res;
4d791aad 1579
1da177e4
LT		 1580 if (!probe_atmel_card(dev)){
1581 unregister_netdev(dev);
1582 goto err_out_res;
1583 }
4d791aad 1584
1da177e4 1585 netif_carrier_off(dev);
4d791aad 1586
5bc4c36d
CL		 1587 ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv);
1588 if (!ent)
1589 printk(KERN_WARNING "atmel: unable to create /proc entry.\n");
4d791aad 1590
e174961c
JB		 1591 printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n",
1592 dev->name, DRIVER_MAJOR, DRIVER_MINOR, dev->dev_addr);
4d791aad 1593
1da177e4 1594 return dev;
4d791aad
CP		 1595
1596err_out_res:
b16a228d 1597 release_region( dev->base_addr, 32);
4d791aad 1598err_out_irq:
1da177e4 1599 free_irq(dev->irq, dev);
4d791aad 1600err_out_free:
1da177e4
LT		 1601 free_netdev(dev);
1602 return NULL;
1603}
1604
1605EXPORT_SYMBOL(init_atmel_card);
1606
b16a228d 1607void stop_atmel_card(struct net_device *dev)
1da177e4
LT		 1608{
1609 struct atmel_private *priv = netdev_priv(dev);
4d791aad 1610
1da177e4 1611 /* put a brick on it... */
4d791aad 1612 if (priv->bus_type == BUS_TYPE_PCCARD)
1da177e4
LT		 1613 atmel_write16(dev, GCR, 0x0060);
1614 atmel_write16(dev, GCR, 0x0040);
4d791aad 1615
1da177e4
LT		 1616 del_timer_sync(&priv->management_timer);
1617 unregister_netdev(dev);
1618 remove_proc_entry("driver/atmel", NULL);
1619 free_irq(dev->irq, dev);
b4558ea9 1620 kfree(priv->firmware);
b16a228d 1621 release_region(dev->base_addr, 32);
1da177e4
LT		 1622 free_netdev(dev);
1623}
1624
1625EXPORT_SYMBOL(stop_atmel_card);
1626
1627static int atmel_set_essid(struct net_device *dev,
1628 struct iw_request_info *info,
1629 struct iw_point *dwrq,
1630 char *extra)
1631{
1632 struct atmel_private *priv = netdev_priv(dev);
1633
1634 /* Check if we asked for `any' */
1635 if(dwrq->flags == 0) {
1636 priv->connect_to_any_BSS = 1;
1637 } else {
1638 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1639
1640 priv->connect_to_any_BSS = 0;
4d791aad 1641
1da177e4 1642 /* Check the size of the string */
6a484db4 1643 if (dwrq->length > MAX_SSID_LENGTH)
4d791aad 1644 return -E2BIG;
1da177e4
LT		 1645 if (index != 0)
1646 return -EINVAL;
4d791aad 1647
6a484db4
JT		 1648 memcpy(priv->new_SSID, extra, dwrq->length);
1649 priv->new_SSID_size = dwrq->length;
1da177e4
LT		 1650 }
1651
1652 return -EINPROGRESS;
1653}
1654
1655static int atmel_get_essid(struct net_device *dev,
1656 struct iw_request_info *info,
1657 struct iw_point *dwrq,
1658 char *extra)
1659{
1660 struct atmel_private *priv = netdev_priv(dev);
1661
1662 /* Get the current SSID */
1663 if (priv->new_SSID_size != 0) {
1664 memcpy(extra, priv->new_SSID, priv->new_SSID_size);
d6a13a24 1665 dwrq->length = priv->new_SSID_size;
1da177e4
LT		 1666 } else {
1667 memcpy(extra, priv->SSID, priv->SSID_size);
d6a13a24 1668 dwrq->length = priv->SSID_size;
1da177e4 1669 }
4d791aad 1670
1da177e4
LT		 1671 dwrq->flags = !priv->connect_to_any_BSS; /* active */
1672
1673 return 0;
1674}
1675
1676static int atmel_get_wap(struct net_device *dev,
1677 struct iw_request_info *info,
1678 struct sockaddr *awrq,
1679 char *extra)
1680{
1681 struct atmel_private *priv = netdev_priv(dev);
1682 memcpy(awrq->sa_data, priv->CurrentBSSID, 6);
1683 awrq->sa_family = ARPHRD_ETHER;
1684
1685 return 0;
1686}
1687
1688static int atmel_set_encode(struct net_device *dev,
1689 struct iw_request_info *info,
1690 struct iw_point *dwrq,
1691 char *extra)
1692{
1693 struct atmel_private *priv = netdev_priv(dev);
1694
1695 /* Basic checking: do we have a key to set ?
1696 * Note : with the new API, it's impossible to get a NULL pointer.
1697 * Therefore, we need to check a key size == 0 instead.
1698 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
1699 * when no key is present (only change flags), but older versions
1700 * don't do it. - Jean II */
1701 if (dwrq->length > 0) {
1702 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1703 int current_index = priv->default_key;
1704 /* Check the size of the key */
1705 if (dwrq->length > 13) {
1706 return -EINVAL;
1707 }
1708 /* Check the index (none -> use current) */
1709 if (index < 0 || index >= 4)
1710 index = current_index;
1711 else
1712 priv->default_key = index;
1713 /* Set the length */
1714 if (dwrq->length > 5)
1715 priv->wep_key_len[index] = 13;
1716 else
1717 if (dwrq->length > 0)
1718 priv->wep_key_len[index] = 5;
1719 else
1720 /* Disable the key */
1721 priv->wep_key_len[index] = 0;
1722 /* Check if the key is not marked as invalid */
5c877fe5 1723 if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
1da177e4
LT		 1724 /* Cleanup */
1725 memset(priv->wep_keys[index], 0, 13);
1726 /* Copy the key in the driver */
1727 memcpy(priv->wep_keys[index], extra, dwrq->length);
1728 }
1729 /* WE specify that if a valid key is set, encryption
1730 * should be enabled (user may turn it off later)
1731 * This is also how "iwconfig ethX key on" works */
4d791aad 1732 if (index == current_index &&
1da177e4
LT		 1733 priv->wep_key_len[index] > 0) {
1734 priv->wep_is_on = 1;
1735 priv->exclude_unencrypted = 1;
1736 if (priv->wep_key_len[index] > 5) {
9a6301c1 1737 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1da177e4
LT		 1738 priv->encryption_level = 2;
1739 } else {
9a6301c1 1740 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1da177e4
LT		 1741 priv->encryption_level = 1;
1742 }
1743 }
1744 } else {
1745 /* Do we want to just set the transmit key index ? */
1746 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
4d791aad 1747 if (index >= 0 && index < 4) {
1da177e4
LT		 1748 priv->default_key = index;
1749 } else
1750 /* Don't complain if only change the mode */
93a3b607 1751 if (!(dwrq->flags & IW_ENCODE_MODE))
1da177e4 1752 return -EINVAL;
1da177e4
LT		 1753 }
1754 /* Read the flags */
4d791aad 1755 if (dwrq->flags & IW_ENCODE_DISABLED) {
1da177e4 1756 priv->wep_is_on = 0;
4d791aad 1757 priv->encryption_level = 0;
1da177e4
LT		 1758 priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1759 } else {
1760 priv->wep_is_on = 1;
1761 if (priv->wep_key_len[priv->default_key] > 5) {
1762 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1763 priv->encryption_level = 2;
1764 } else {
1765 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1766 priv->encryption_level = 1;
1767 }
1768 }
4d791aad 1769 if (dwrq->flags & IW_ENCODE_RESTRICTED)
1da177e4 1770 priv->exclude_unencrypted = 1;
4d791aad 1771 if(dwrq->flags & IW_ENCODE_OPEN)
1da177e4 1772 priv->exclude_unencrypted = 0;
4d791aad 1773
1da177e4
LT		 1774 return -EINPROGRESS; /* Call commit handler */
1775}
1776
1da177e4
LT		 1777static int atmel_get_encode(struct net_device *dev,
1778 struct iw_request_info *info,
1779 struct iw_point *dwrq,
1780 char *extra)
1781{
1782 struct atmel_private *priv = netdev_priv(dev);
1783 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
4d791aad 1784
1da177e4
LT		 1785 if (!priv->wep_is_on)
1786 dwrq->flags = IW_ENCODE_DISABLED;
b16a228d 1787 else {
1788 if (priv->exclude_unencrypted)
1789 dwrq->flags = IW_ENCODE_RESTRICTED;
1790 else
1791 dwrq->flags = IW_ENCODE_OPEN;
1792 }
1da177e4
LT		 1793 /* Which key do we want ? -1 -> tx index */
1794 if (index < 0 || index >= 4)
1795 index = priv->default_key;
1796 dwrq->flags |= index + 1;
1797 /* Copy the key to the user buffer */
1798 dwrq->length = priv->wep_key_len[index];
1799 if (dwrq->length > 16) {
1800 dwrq->length=0;
1801 } else {
1802 memset(extra, 0, 16);
1803 memcpy(extra, priv->wep_keys[index], dwrq->length);
1804 }
4d791aad 1805
1da177e4
LT		 1806 return 0;
1807}
1808
9a6301c1
DW		 1809static int atmel_set_encodeext(struct net_device *dev,
1810 struct iw_request_info *info,
1811 union iwreq_data *wrqu,
1812 char *extra)
1813{
1814 struct atmel_private *priv = netdev_priv(dev);
1815 struct iw_point *encoding = &wrqu->encoding;
1816 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
0d467502 1817 int idx, key_len, alg = ext->alg, set_key = 1;
9a6301c1
DW		 1818
1819 /* Determine and validate the key index */
1820 idx = encoding->flags & IW_ENCODE_INDEX;
1821 if (idx) {
2c706002 1822 if (idx < 1 || idx > 4)
9a6301c1
DW		 1823 return -EINVAL;
1824 idx--;
1825 } else
1826 idx = priv->default_key;
1827
0d467502
DW		 1828 if (encoding->flags & IW_ENCODE_DISABLED)
1829 alg = IW_ENCODE_ALG_NONE;
9a6301c1 1830
0d467502 1831 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
9a6301c1 1832 priv->default_key = idx;
0d467502
DW		 1833 set_key = ext->key_len > 0 ? 1 : 0;
1834 }
9a6301c1 1835
0d467502
DW		 1836 if (set_key) {
1837 /* Set the requested key first */
1838 switch (alg) {
1839 case IW_ENCODE_ALG_NONE:
1840 priv->wep_is_on = 0;
1841 priv->encryption_level = 0;
1842 priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1843 break;
1844 case IW_ENCODE_ALG_WEP:
1845 if (ext->key_len > 5) {
1846 priv->wep_key_len[idx] = 13;
1847 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1848 priv->encryption_level = 2;
1849 } else if (ext->key_len > 0) {
1850 priv->wep_key_len[idx] = 5;
1851 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1852 priv->encryption_level = 1;
1853 } else {
1854 return -EINVAL;
1855 }
1856 priv->wep_is_on = 1;
1857 memset(priv->wep_keys[idx], 0, 13);
1858 key_len = min ((int)ext->key_len, priv->wep_key_len[idx]);
1859 memcpy(priv->wep_keys[idx], ext->key, key_len);
1860 break;
1861 default:
9a6301c1
DW		 1862 return -EINVAL;
1863 }
9a6301c1
DW		 1864 }
1865
1866 return -EINPROGRESS;
1867}
1868
1869static int atmel_get_encodeext(struct net_device *dev,
1870 struct iw_request_info *info,
1871 union iwreq_data *wrqu,
1872 char *extra)
1873{
1874 struct atmel_private *priv = netdev_priv(dev);
1875 struct iw_point *encoding = &wrqu->encoding;
1876 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1877 int idx, max_key_len;
1878
1879 max_key_len = encoding->length - sizeof(*ext);
1880 if (max_key_len < 0)
1881 return -EINVAL;
1882
1883 idx = encoding->flags & IW_ENCODE_INDEX;
1884 if (idx) {
2c706002 1885 if (idx < 1 || idx > 4)
9a6301c1
DW		 1886 return -EINVAL;
1887 idx--;
1888 } else
1889 idx = priv->default_key;
1890
1891 encoding->flags = idx + 1;
1892 memset(ext, 0, sizeof(*ext));
5c877fe5 1893
9a6301c1
DW		 1894 if (!priv->wep_is_on) {
1895 ext->alg = IW_ENCODE_ALG_NONE;
1896 ext->key_len = 0;
1897 encoding->flags |= IW_ENCODE_DISABLED;
1898 } else {
1899 if (priv->encryption_level > 0)
1900 ext->alg = IW_ENCODE_ALG_WEP;
1901 else
1902 return -EINVAL;
1903
1904 ext->key_len = priv->wep_key_len[idx];
1905 memcpy(ext->key, priv->wep_keys[idx], ext->key_len);
1906 encoding->flags |= IW_ENCODE_ENABLED;
1907 }
1908
1909 return 0;
1910}
1911
1912static int atmel_set_auth(struct net_device *dev,
1913 struct iw_request_info *info,
1914 union iwreq_data *wrqu, char *extra)
1915{
1916 struct atmel_private *priv = netdev_priv(dev);
1917 struct iw_param *param = &wrqu->param;
1918
1919 switch (param->flags & IW_AUTH_INDEX) {
1920 case IW_AUTH_WPA_VERSION:
1921 case IW_AUTH_CIPHER_PAIRWISE:
1922 case IW_AUTH_CIPHER_GROUP:
1923 case IW_AUTH_KEY_MGMT:
1924 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1925 case IW_AUTH_PRIVACY_INVOKED:
1926 /*
1927 * atmel does not use these parameters
1928 */
1929 break;
1930
1931 case IW_AUTH_DROP_UNENCRYPTED:
1932 priv->exclude_unencrypted = param->value ? 1 : 0;
1933 break;
1934
1935 case IW_AUTH_80211_AUTH_ALG: {
1936 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
1937 priv->exclude_unencrypted = 1;
1938 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
1939 priv->exclude_unencrypted = 0;
1940 } else
1941 return -EINVAL;
1942 break;
1943 }
1944
1945 case IW_AUTH_WPA_ENABLED:
1946 /* Silently accept disable of WPA */
1947 if (param->value > 0)
1948 return -EOPNOTSUPP;
1949 break;
1950
1951 default:
1952 return -EOPNOTSUPP;
1953 }
1954 return -EINPROGRESS;
1955}
1956
1957static int atmel_get_auth(struct net_device *dev,
1958 struct iw_request_info *info,
1959 union iwreq_data *wrqu, char *extra)
1960{
1961 struct atmel_private *priv = netdev_priv(dev);
1962 struct iw_param *param = &wrqu->param;
1963
1964 switch (param->flags & IW_AUTH_INDEX) {
1965 case IW_AUTH_DROP_UNENCRYPTED:
1966 param->value = priv->exclude_unencrypted;
1967 break;
1968
1969 case IW_AUTH_80211_AUTH_ALG:
1970 if (priv->exclude_unencrypted == 1)
1971 param->value = IW_AUTH_ALG_SHARED_KEY;
1972 else
1973 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
1974 break;
1975
1976 case IW_AUTH_WPA_ENABLED:
1977 param->value = 0;
1978 break;
1979
1980 default:
1981 return -EOPNOTSUPP;
1982 }
1983 return 0;
1984}
1985
1986
1da177e4
LT		 1987static int atmel_get_name(struct net_device *dev,
1988 struct iw_request_info *info,
1989 char *cwrq,
1990 char *extra)
1991{
1992 strcpy(cwrq, "IEEE 802.11-DS");
1993 return 0;
1994}
1995
1996static int atmel_set_rate(struct net_device *dev,
1997 struct iw_request_info *info,
1998 struct iw_param *vwrq,
1999 char *extra)
2000{
2001 struct atmel_private *priv = netdev_priv(dev);
4d791aad 2002
1da177e4
LT		 2003 if (vwrq->fixed == 0) {
2004 priv->tx_rate = 3;
2005 priv->auto_tx_rate = 1;
2006 } else {
2007 priv->auto_tx_rate = 0;
4d791aad 2008
1da177e4 2009 /* Which type of value ? */
4d791aad 2010 if ((vwrq->value < 4) && (vwrq->value >= 0)) {
1da177e4 2011 /* Setting by rate index */
4d791aad 2012 priv->tx_rate = vwrq->value;
1da177e4
LT		 2013 } else {
2014 /* Setting by frequency value */
2015 switch (vwrq->value) {
2016 case 1000000: priv->tx_rate = 0; break;
2017 case 2000000: priv->tx_rate = 1; break;
2018 case 5500000: priv->tx_rate = 2; break;
2019 case 11000000: priv->tx_rate = 3; break;
2020 default: return -EINVAL;
2021 }
2022 }
2023 }
2024
2025 return -EINPROGRESS;
2026}
2027
2028static int atmel_set_mode(struct net_device *dev,
2029 struct iw_request_info *info,
2030 __u32 *uwrq,
2031 char *extra)
2032{
2033 struct atmel_private *priv = netdev_priv(dev);
2034
2035 if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA)
2036 return -EINVAL;
2037
2038 priv->operating_mode = *uwrq;
4d791aad 2039 return -EINPROGRESS;
1da177e4
LT		 2040}
2041
2042static int atmel_get_mode(struct net_device *dev,
2043 struct iw_request_info *info,
2044 __u32 *uwrq,
2045 char *extra)
2046{
2047 struct atmel_private *priv = netdev_priv(dev);
4d791aad 2048
1da177e4
LT		 2049 *uwrq = priv->operating_mode;
2050 return 0;
2051}
2052
2053static int atmel_get_rate(struct net_device *dev,
2054 struct iw_request_info *info,
2055 struct iw_param *vwrq,
2056 char *extra)
2057{
2058 struct atmel_private *priv = netdev_priv(dev);
2059
2060 if (priv->auto_tx_rate) {
2061 vwrq->fixed = 0;
2062 vwrq->value = 11000000;
2063 } else {
2064 vwrq->fixed = 1;
2065 switch(priv->tx_rate) {
2066 case 0: vwrq->value = 1000000; break;
2067 case 1: vwrq->value = 2000000; break;
2068 case 2: vwrq->value = 5500000; break;
2069 case 3: vwrq->value = 11000000; break;
2070 }
2071 }
2072 return 0;
2073}
2074
2075static int atmel_set_power(struct net_device *dev,
2076 struct iw_request_info *info,
2077 struct iw_param *vwrq,
2078 char *extra)
2079{
2080 struct atmel_private *priv = netdev_priv(dev);
2081 priv->power_mode = vwrq->disabled ? 0 : 1;
2082 return -EINPROGRESS;
2083}
2084
2085static int atmel_get_power(struct net_device *dev,
2086 struct iw_request_info *info,
2087 struct iw_param *vwrq,
2088 char *extra)
2089{
2090 struct atmel_private *priv = netdev_priv(dev);
2091 vwrq->disabled = priv->power_mode ? 0 : 1;
2092 vwrq->flags = IW_POWER_ON;
2093 return 0;
2094}
2095
2096static int atmel_set_retry(struct net_device *dev,
2097 struct iw_request_info *info,
2098 struct iw_param *vwrq,
2099 char *extra)
2100{
2101 struct atmel_private *priv = netdev_priv(dev);
4d791aad
CP		 2102
2103 if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) {
6a484db4 2104 if (vwrq->flags & IW_RETRY_LONG)
1da177e4 2105 priv->long_retry = vwrq->value;
6a484db4 2106 else if (vwrq->flags & IW_RETRY_SHORT)
1da177e4
LT		 2107 priv->short_retry = vwrq->value;
2108 else {
2109 /* No modifier : set both */
2110 priv->long_retry = vwrq->value;
2111 priv->short_retry = vwrq->value;
2112 }
4d791aad 2113 return -EINPROGRESS;
1da177e4 2114 }
4d791aad 2115
1da177e4
LT		 2116 return -EINVAL;
2117}
2118
2119static int atmel_get_retry(struct net_device *dev,
2120 struct iw_request_info *info,
2121 struct iw_param *vwrq,
2122 char *extra)
2123{
2124 struct atmel_private *priv = netdev_priv(dev);
2125
2126 vwrq->disabled = 0; /* Can't be disabled */
2127
6a484db4
JT		 2128 /* Note : by default, display the short retry number */
2129 if (vwrq->flags & IW_RETRY_LONG) {
2130 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1da177e4
LT		 2131 vwrq->value = priv->long_retry;
2132 } else {
2133 vwrq->flags = IW_RETRY_LIMIT;
2134 vwrq->value = priv->short_retry;
4d791aad 2135 if (priv->long_retry != priv->short_retry)
6a484db4 2136 vwrq->flags |= IW_RETRY_SHORT;
1da177e4
LT		 2137 }
2138
2139 return 0;
2140}
2141
2142static int atmel_set_rts(struct net_device *dev,
2143 struct iw_request_info *info,
2144 struct iw_param *vwrq,
2145 char *extra)
2146{
2147 struct atmel_private *priv = netdev_priv(dev);
2148 int rthr = vwrq->value;
2149
4d791aad 2150 if (vwrq->disabled)
1da177e4 2151 rthr = 2347;
4d791aad 2152 if ((rthr < 0) || (rthr > 2347)) {
1da177e4
LT		 2153 return -EINVAL;
2154 }
2155 priv->rts_threshold = rthr;
4d791aad 2156
1da177e4
LT		 2157 return -EINPROGRESS; /* Call commit handler */
2158}
2159
2160static int atmel_get_rts(struct net_device *dev,
2161 struct iw_request_info *info,
2162 struct iw_param *vwrq,
2163 char *extra)
2164{
2165 struct atmel_private *priv = netdev_priv(dev);
4d791aad 2166
1da177e4
LT		 2167 vwrq->value = priv->rts_threshold;
2168 vwrq->disabled = (vwrq->value >= 2347);
2169 vwrq->fixed = 1;
2170
2171 return 0;
2172}
2173
2174static int atmel_set_frag(struct net_device *dev,
2175 struct iw_request_info *info,
2176 struct iw_param *vwrq,
2177 char *extra)
2178{
2179 struct atmel_private *priv = netdev_priv(dev);
2180 int fthr = vwrq->value;
2181
4d791aad 2182 if (vwrq->disabled)
1da177e4 2183 fthr = 2346;
4d791aad 2184 if ((fthr < 256) || (fthr > 2346)) {
1da177e4
LT		 2185 return -EINVAL;
2186 }
2187 fthr &= ~0x1; /* Get an even value - is it really needed ??? */
2188 priv->frag_threshold = fthr;
4d791aad 2189
1da177e4
LT		 2190 return -EINPROGRESS; /* Call commit handler */
2191}
2192
2193static int atmel_get_frag(struct net_device *dev,
2194 struct iw_request_info *info,
2195 struct iw_param *vwrq,
2196 char *extra)
2197{
2198 struct atmel_private *priv = netdev_priv(dev);
2199
2200 vwrq->value = priv->frag_threshold;
2201 vwrq->disabled = (vwrq->value >= 2346);
2202 vwrq->fixed = 1;
2203
2204 return 0;
2205}
2206
1da177e4
LT		 2207static int atmel_set_freq(struct net_device *dev,
2208 struct iw_request_info *info,
2209 struct iw_freq *fwrq,
2210 char *extra)
2211{
2212 struct atmel_private *priv = netdev_priv(dev);
2213 int rc = -EINPROGRESS; /* Call commit handler */
4d791aad 2214
1da177e4 2215 /* If setting by frequency, convert to a channel */
9ee677c2 2216 if (fwrq->e == 1) {
1da177e4 2217 int f = fwrq->m / 100000;
9ee677c2 2218
1da177e4
LT		 2219 /* Hack to fall through... */
2220 fwrq->e = 0;
9ee677c2 2221 fwrq->m = ieee80211_freq_to_dsss_chan(f);
1da177e4
LT		 2222 }
2223 /* Setting by channel number */
4d791aad 2224 if ((fwrq->m > 1000) || (fwrq->e > 0))
1da177e4
LT		 2225 rc = -EOPNOTSUPP;
2226 else {
2227 int channel = fwrq->m;
2228 if (atmel_validate_channel(priv, channel) == 0) {
2229 priv->channel = channel;
2230 } else {
2231 rc = -EINVAL;
4d791aad 2232 }
1da177e4
LT		 2233 }
2234 return rc;
2235}
2236
2237static int atmel_get_freq(struct net_device *dev,
2238 struct iw_request_info *info,
2239 struct iw_freq *fwrq,
2240 char *extra)
2241{
2242 struct atmel_private *priv = netdev_priv(dev);
2243
2244 fwrq->m = priv->channel;
2245 fwrq->e = 0;
2246 return 0;
2247}
2248
2249static int atmel_set_scan(struct net_device *dev,
2250 struct iw_request_info *info,
9930ccee 2251 struct iw_point *dwrq,
1da177e4
LT		 2252 char *extra)
2253{
2254 struct atmel_private *priv = netdev_priv(dev);
2255 unsigned long flags;
2256
2257 /* Note : you may have realised that, as this is a SET operation,
2258 * this is privileged and therefore a normal user can't
2259 * perform scanning.
2260 * This is not an error, while the device perform scanning,
2261 * traffic doesn't flow, so it's a perfect DoS...
2262 * Jean II */
4d791aad 2263
1da177e4
LT		 2264 if (priv->station_state == STATION_STATE_DOWN)
2265 return -EAGAIN;
2266
2267 /* Timeout old surveys. */
6e33e30d 2268 if (time_after(jiffies, priv->last_survey + 20 * HZ))
1da177e4
LT		 2269 priv->site_survey_state = SITE_SURVEY_IDLE;
2270 priv->last_survey = jiffies;
2271
2272 /* Initiate a scan command */
2273 if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS)
2274 return -EBUSY;
4d791aad 2275
1da177e4
LT		 2276 del_timer_sync(&priv->management_timer);
2277 spin_lock_irqsave(&priv->irqlock, flags);
4d791aad 2278
1da177e4
LT		 2279 priv->site_survey_state = SITE_SURVEY_IN_PROGRESS;
2280 priv->fast_scan = 0;
2281 atmel_scan(priv, 0);
2282 spin_unlock_irqrestore(&priv->irqlock, flags);
4d791aad 2283
1da177e4
LT		 2284 return 0;
2285}
2286
2287static int atmel_get_scan(struct net_device *dev,
2288 struct iw_request_info *info,
2289 struct iw_point *dwrq,
2290 char *extra)
2291{
2292 struct atmel_private *priv = netdev_priv(dev);
2293 int i;
2294 char *current_ev = extra;
2295 struct iw_event iwe;
4d791aad 2296
1da177e4
LT		 2297 if (priv->site_survey_state != SITE_SURVEY_COMPLETED)
2298 return -EAGAIN;
4d791aad
CP		 2299
2300 for (i = 0; i < priv->BSS_list_entries; i++) {
1da177e4
LT		 2301 iwe.cmd = SIOCGIWAP;
2302 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
2303 memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6);
ccc58057
DM		 2304 current_ev = iwe_stream_add_event(info, current_ev,
2305 extra + IW_SCAN_MAX_DATA,
2306 &iwe, IW_EV_ADDR_LEN);
1da177e4
LT		 2307
2308 iwe.u.data.length = priv->BSSinfo[i].SSIDsize;
2309 if (iwe.u.data.length > 32)
2310 iwe.u.data.length = 32;
2311 iwe.cmd = SIOCGIWESSID;
2312 iwe.u.data.flags = 1;
ccc58057
DM		 2313 current_ev = iwe_stream_add_point(info, current_ev,
2314 extra + IW_SCAN_MAX_DATA,
2315 &iwe, priv->BSSinfo[i].SSID);
4d791aad 2316
1da177e4
LT		 2317 iwe.cmd = SIOCGIWMODE;
2318 iwe.u.mode = priv->BSSinfo[i].BSStype;
ccc58057
DM		 2319 current_ev = iwe_stream_add_event(info, current_ev,
2320 extra + IW_SCAN_MAX_DATA,
2321 &iwe, IW_EV_UINT_LEN);
4d791aad 2322
1da177e4
LT		 2323 iwe.cmd = SIOCGIWFREQ;
2324 iwe.u.freq.m = priv->BSSinfo[i].channel;
2325 iwe.u.freq.e = 0;
ccc58057
DM		 2326 current_ev = iwe_stream_add_event(info, current_ev,
2327 extra + IW_SCAN_MAX_DATA,
2328 &iwe, IW_EV_FREQ_LEN);
4d791aad 2329
3b31dc32
HK		 2330 /* Add quality statistics */
2331 iwe.cmd = IWEVQUAL;
2332 iwe.u.qual.level = priv->BSSinfo[i].RSSI;
2333 iwe.u.qual.qual = iwe.u.qual.level;
2334 /* iwe.u.qual.noise = SOMETHING */
ccc58057
DM		 2335 current_ev = iwe_stream_add_event(info, current_ev,
2336 extra + IW_SCAN_MAX_DATA,
2337 &iwe, IW_EV_QUAL_LEN);
3b31dc32
HK		 2338
2339
1da177e4
LT		 2340 iwe.cmd = SIOCGIWENCODE;
2341 if (priv->BSSinfo[i].UsingWEP)
2342 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
2343 else
2344 iwe.u.data.flags = IW_ENCODE_DISABLED;
2345 iwe.u.data.length = 0;
ccc58057
DM		 2346 current_ev = iwe_stream_add_point(info, current_ev,
2347 extra + IW_SCAN_MAX_DATA,
2348 &iwe, NULL);
1da177e4
LT		 2349 }
2350
2351 /* Length of data */
2352 dwrq->length = (current_ev - extra);
4d791aad
CP		 2353 dwrq->flags = 0;
2354
1da177e4
LT		 2355 return 0;
2356}
2357
2358static int atmel_get_range(struct net_device *dev,
2359 struct iw_request_info *info,
2360 struct iw_point *dwrq,
2361 char *extra)
2362{
2363 struct atmel_private *priv = netdev_priv(dev);
2364 struct iw_range *range = (struct iw_range *) extra;
4d791aad 2365 int k, i, j;
1da177e4
LT		 2366
2367 dwrq->length = sizeof(struct iw_range);
f36be621 2368 memset(range, 0, sizeof(struct iw_range));
1da177e4
LT		 2369 range->min_nwid = 0x0000;
2370 range->max_nwid = 0x0000;
2371 range->num_channels = 0;
b4341135 2372 for (j = 0; j < ARRAY_SIZE(channel_table); j++)
1da177e4
LT		 2373 if (priv->reg_domain == channel_table[j].reg_domain) {
2374 range->num_channels = channel_table[j].max - channel_table[j].min + 1;
2375 break;
2376 }
2377 if (range->num_channels != 0) {
4d791aad 2378 for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) {
1da177e4 2379 range->freq[k].i = i; /* List index */
9ee677c2
DK		 2380
2381 /* Values in MHz -> * 10^5 * 10 */
2382 range->freq[k].m = (ieee80211_dsss_chan_to_freq(i) *
2383 100000);
2384 range->freq[k++].e = 1;
1da177e4
LT		 2385 }
2386 range->num_frequency = k;
2387 }
4d791aad 2388
1da177e4
LT		 2389 range->max_qual.qual = 100;
2390 range->max_qual.level = 100;
2391 range->max_qual.noise = 0;
2392 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
2393
2394 range->avg_qual.qual = 50;
2395 range->avg_qual.level = 50;
2396 range->avg_qual.noise = 0;
2397 range->avg_qual.updated = IW_QUAL_NOISE_INVALID;
2398
2399 range->sensitivity = 0;
2400
2401 range->bitrate[0] = 1000000;
2402 range->bitrate[1] = 2000000;
2403 range->bitrate[2] = 5500000;
2404 range->bitrate[3] = 11000000;
2405 range->num_bitrates = 4;
2406
2407 range->min_rts = 0;
2408 range->max_rts = 2347;
2409 range->min_frag = 256;
2410 range->max_frag = 2346;
2411
2412 range->encoding_size[0] = 5;
2413 range->encoding_size[1] = 13;
2414 range->num_encoding_sizes = 2;
2415 range->max_encoding_tokens = 4;
4d791aad 2416
1da177e4
LT		 2417 range->pmp_flags = IW_POWER_ON;
2418 range->pmt_flags = IW_POWER_ON;
2419 range->pm_capa = 0;
4d791aad 2420
1da177e4
LT		 2421 range->we_version_source = WIRELESS_EXT;
2422 range->we_version_compiled = WIRELESS_EXT;
2423 range->retry_capa = IW_RETRY_LIMIT ;
2424 range->retry_flags = IW_RETRY_LIMIT;
2425 range->r_time_flags = 0;
2426 range->min_retry = 1;
2427 range->max_retry = 65535;
2428
2429 return 0;
2430}
2431
2432static int atmel_set_wap(struct net_device *dev,
2433 struct iw_request_info *info,
2434 struct sockaddr *awrq,
2435 char *extra)
2436{
2437 struct atmel_private *priv = netdev_priv(dev);
2438 int i;
9a6301c1
DW		 2439 static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
2440 static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1da177e4
LT		 2441 unsigned long flags;
2442
2443 if (awrq->sa_family != ARPHRD_ETHER)
2444 return -EINVAL;
4d791aad 2445
9a6301c1
DW		 2446 if (!memcmp(any, awrq->sa_data, 6) ||
2447 !memcmp(off, awrq->sa_data, 6)) {
1da177e4
LT		 2448 del_timer_sync(&priv->management_timer);
2449 spin_lock_irqsave(&priv->irqlock, flags);
2450 atmel_scan(priv, 1);
2451 spin_unlock_irqrestore(&priv->irqlock, flags);
2452 return 0;
2453 }
4d791aad
CP		 2454
2455 for (i = 0; i < priv->BSS_list_entries; i++) {
1da177e4
LT		 2456 if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) {
2457 if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) {
2458 return -EINVAL;
2459 } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) {
2460 return -EINVAL;
2461 } else {
2462 del_timer_sync(&priv->management_timer);
2463 spin_lock_irqsave(&priv->irqlock, flags);
2464 atmel_join_bss(priv, i);
2465 spin_unlock_irqrestore(&priv->irqlock, flags);
2466 return 0;
2467 }
2468 }
2469 }
4d791aad 2470
1da177e4
LT		 2471 return -EINVAL;
2472}
4d791aad 2473
1da177e4
LT		 2474static int atmel_config_commit(struct net_device *dev,
2475 struct iw_request_info *info, /* NULL */
2476 void *zwrq, /* NULL */
2477 char *extra) /* NULL */
2478{
2479 return atmel_open(dev);
2480}
2481
4d791aad 2482static const iw_handler atmel_handler[] =
1da177e4
LT		 2483{
2484 (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */
4d791aad 2485 (iw_handler) atmel_get_name, /* SIOCGIWNAME */
1da177e4
LT		 2486 (iw_handler) NULL, /* SIOCSIWNWID */
2487 (iw_handler) NULL, /* SIOCGIWNWID */
2488 (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */
2489 (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */
2490 (iw_handler) atmel_set_mode, /* SIOCSIWMODE */
2491 (iw_handler) atmel_get_mode, /* SIOCGIWMODE */
4d791aad
CP		 2492 (iw_handler) NULL, /* SIOCSIWSENS */
2493 (iw_handler) NULL, /* SIOCGIWSENS */
1da177e4
LT		 2494 (iw_handler) NULL, /* SIOCSIWRANGE */
2495 (iw_handler) atmel_get_range, /* SIOCGIWRANGE */
2496 (iw_handler) NULL, /* SIOCSIWPRIV */
2497 (iw_handler) NULL, /* SIOCGIWPRIV */
2498 (iw_handler) NULL, /* SIOCSIWSTATS */
2499 (iw_handler) NULL, /* SIOCGIWSTATS */
2500 (iw_handler) NULL, /* SIOCSIWSPY */
2501 (iw_handler) NULL, /* SIOCGIWSPY */
2502 (iw_handler) NULL, /* -- hole -- */
2503 (iw_handler) NULL, /* -- hole -- */
2504 (iw_handler) atmel_set_wap, /* SIOCSIWAP */
2505 (iw_handler) atmel_get_wap, /* SIOCGIWAP */
2506 (iw_handler) NULL, /* -- hole -- */
4d791aad 2507 (iw_handler) NULL, /* SIOCGIWAPLIST */
1da177e4
LT		 2508 (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */
2509 (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */
2510 (iw_handler) atmel_set_essid, /* SIOCSIWESSID */
2511 (iw_handler) atmel_get_essid, /* SIOCGIWESSID */
4d791aad
CP		 2512 (iw_handler) NULL, /* SIOCSIWNICKN */
2513 (iw_handler) NULL, /* SIOCGIWNICKN */
1da177e4
LT		 2514 (iw_handler) NULL, /* -- hole -- */
2515 (iw_handler) NULL, /* -- hole -- */
2516 (iw_handler) atmel_set_rate, /* SIOCSIWRATE */
2517 (iw_handler) atmel_get_rate, /* SIOCGIWRATE */
2518 (iw_handler) atmel_set_rts, /* SIOCSIWRTS */
2519 (iw_handler) atmel_get_rts, /* SIOCGIWRTS */
2520 (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */
2521 (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */
4d791aad
CP		 2522 (iw_handler) NULL, /* SIOCSIWTXPOW */
2523 (iw_handler) NULL, /* SIOCGIWTXPOW */
1da177e4
LT		 2524 (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */
2525 (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */
2526 (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */
2527 (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */
2528 (iw_handler) atmel_set_power, /* SIOCSIWPOWER */
2529 (iw_handler) atmel_get_power, /* SIOCGIWPOWER */
9a6301c1
DW		 2530 (iw_handler) NULL, /* -- hole -- */
2531 (iw_handler) NULL, /* -- hole -- */
2532 (iw_handler) NULL, /* SIOCSIWGENIE */
2533 (iw_handler) NULL, /* SIOCGIWGENIE */
2534 (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */
2535 (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */
2536 (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */
2537 (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */
2538 (iw_handler) NULL, /* SIOCSIWPMKSA */
1da177e4
LT		 2539};
2540
4d791aad 2541static const iw_handler atmel_private_handler[] =
1da177e4
LT		 2542{
2543 NULL, /* SIOCIWFIRSTPRIV */
2544};
2545
2546typedef struct atmel_priv_ioctl {
2547 char id[32];
4d791aad
CP		 2548 unsigned char __user *data;
2549 unsigned short len;
1da177e4
LT		 2550} atmel_priv_ioctl;
2551
4d791aad
CP		 2552#define ATMELFWL SIOCIWFIRSTPRIV
2553#define ATMELIDIFC ATMELFWL + 1
2554#define ATMELRD ATMELFWL + 2
2555#define ATMELMAGIC 0x51807
1da177e4
LT		 2556#define REGDOMAINSZ 20
2557
2558static const struct iw_priv_args atmel_private_args[] = {
4d791aad
CP		 2559 {
2560 .cmd = ATMELFWL,
2561 .set_args = IW_PRIV_TYPE_BYTE
2562 | IW_PRIV_SIZE_FIXED
2563 | sizeof (atmel_priv_ioctl),
2564 .get_args = IW_PRIV_TYPE_NONE,
2565 .name = "atmelfwl"
2566 }, {
2567 .cmd = ATMELIDIFC,
2568 .set_args = IW_PRIV_TYPE_NONE,
2569 .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
2570 .name = "atmelidifc"
2571 }, {
2572 .cmd = ATMELRD,
2573 .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ,
2574 .get_args = IW_PRIV_TYPE_NONE,
2575 .name = "regdomain"
2576 },
1da177e4
LT		 2577};
2578
4d791aad 2579static const struct iw_handler_def atmel_handler_def =
1da177e4 2580{
b4341135
DT		 2581 .num_standard = ARRAY_SIZE(atmel_handler),
2582 .num_private = ARRAY_SIZE(atmel_private_handler),
2583 .num_private_args = ARRAY_SIZE(atmel_private_args),
1da177e4 2584 .standard = (iw_handler *) atmel_handler,
4d791aad 2585 .private = (iw_handler *) atmel_private_handler,
72f98d38
JT		 2586 .private_args = (struct iw_priv_args *) atmel_private_args,
2587 .get_wireless_stats = atmel_get_wireless_stats
1da177e4
LT		 2588};
2589
2590static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2591{
2592 int i, rc = 0;
2593 struct atmel_private *priv = netdev_priv(dev);
2594 atmel_priv_ioctl com;
2595 struct iwreq *wrq = (struct iwreq *) rq;
2596 unsigned char *new_firmware;
4d791aad 2597 char domain[REGDOMAINSZ + 1];
1da177e4
LT		 2598
2599 switch (cmd) {
1da177e4 2600 case ATMELIDIFC:
4d791aad 2601 wrq->u.param.value = ATMELMAGIC;
1da177e4 2602 break;
4d791aad 2603
1da177e4
LT		 2604 case ATMELFWL:
2605 if (copy_from_user(&com, rq->ifr_data, sizeof(com))) {
2606 rc = -EFAULT;
2607 break;
2608 }
2609
2610 if (!capable(CAP_NET_ADMIN)) {
2611 rc = -EPERM;
2612 break;
2613 }
2614
2615 if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) {
2616 rc = -ENOMEM;
2617 break;
2618 }
2619
2620 if (copy_from_user(new_firmware, com.data, com.len)) {
2621 kfree(new_firmware);
2622 rc = -EFAULT;
2623 break;
2624 }
2625
b4558ea9 2626 kfree(priv->firmware);
4d791aad 2627
1da177e4
LT		 2628 priv->firmware = new_firmware;
2629 priv->firmware_length = com.len;
2630 strncpy(priv->firmware_id, com.id, 31);
2631 priv->firmware_id[31] = '\0';
2632 break;
2633
2634 case ATMELRD:
2635 if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) {
2636 rc = -EFAULT;
2637 break;
2638 }
4d791aad 2639
1da177e4
LT		 2640 if (!capable(CAP_NET_ADMIN)) {
2641 rc = -EPERM;
2642 break;
2643 }
2644
2645 domain[REGDOMAINSZ] = 0;
2646 rc = -EINVAL;
b4341135 2647 for (i = 0; i < ARRAY_SIZE(channel_table); i++) {
1da177e4
LT		 2648 /* strcasecmp doesn't exist in the library */
2649 char *a = channel_table[i].name;
2650 char *b = domain;
2651 while (*a) {
2652 char c1 = *a++;
2653 char c2 = *b++;
2654 if (tolower(c1) != tolower(c2))
2655 break;
2656 }
2657 if (!*a && !*b) {
2658 priv->config_reg_domain = channel_table[i].reg_domain;
2659 rc = 0;
2660 }
2661 }
4d791aad 2662
1da177e4
LT		 2663 if (rc == 0 && priv->station_state != STATION_STATE_DOWN)
2664 rc = atmel_open(dev);
2665 break;
4d791aad 2666
1da177e4
LT		 2667 default:
2668 rc = -EOPNOTSUPP;
2669 }
4d791aad 2670
1da177e4
LT		 2671 return rc;
2672}
2673
2674struct auth_body {
0e5ce1f3
AV		 2675 __le16 alg;
2676 __le16 trans_seq;
2677 __le16 status;
1da177e4
LT		 2678 u8 el_id;
2679 u8 chall_text_len;
2680 u8 chall_text[253];
4d791aad 2681};
1da177e4
LT		 2682
2683static void atmel_enter_state(struct atmel_private *priv, int new_state)
2684{
2685 int old_state = priv->station_state;
4d791aad 2686
1da177e4
LT		 2687 if (new_state == old_state)
2688 return;
4d791aad 2689
1da177e4 2690 priv->station_state = new_state;
4d791aad 2691
1da177e4
LT		 2692 if (new_state == STATION_STATE_READY) {
2693 netif_start_queue(priv->dev);
2694 netif_carrier_on(priv->dev);
2695 }
2696
2697 if (old_state == STATION_STATE_READY) {
2698 netif_carrier_off(priv->dev);
2699 if (netif_running(priv->dev))
2700 netif_stop_queue(priv->dev);
2701 priv->last_beacon_timestamp = 0;
2702 }
2703}
2704
2705static void atmel_scan(struct atmel_private *priv, int specific_ssid)
2706{
2707 struct {
2708 u8 BSSID[6];
2709 u8 SSID[MAX_SSID_LENGTH];
2710 u8 scan_type;
2711 u8 channel;
0e5ce1f3
AV		 2712 __le16 BSS_type;
2713 __le16 min_channel_time;
2714 __le16 max_channel_time;
1da177e4
LT		 2715 u8 options;
2716 u8 SSID_size;
2717 } cmd;
4d791aad 2718
1da177e4
LT		 2719 memset(cmd.BSSID, 0xff, 6);
2720
2721 if (priv->fast_scan) {
2722 cmd.SSID_size = priv->SSID_size;
2723 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2724 cmd.min_channel_time = cpu_to_le16(10);
2725 cmd.max_channel_time = cpu_to_le16(50);
2726 } else {
2727 priv->BSS_list_entries = 0;
2728 cmd.SSID_size = 0;
2729 cmd.min_channel_time = cpu_to_le16(10);
2730 cmd.max_channel_time = cpu_to_le16(120);
2731 }
4d791aad 2732
1da177e4 2733 cmd.options = 0;
4d791aad 2734
1da177e4
LT		 2735 if (!specific_ssid)
2736 cmd.options |= SCAN_OPTIONS_SITE_SURVEY;
4d791aad
CP		 2737
2738 cmd.channel = (priv->channel & 0x7f);
1da177e4 2739 cmd.scan_type = SCAN_TYPE_ACTIVE;
4d791aad 2740 cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ?
1da177e4 2741 BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE);
4d791aad 2742
1da177e4
LT		 2743 atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd));
2744
2745 /* This must come after all hardware access to avoid being messed up
2746 by stuff happening in interrupt context after we leave STATE_DOWN */
2747 atmel_enter_state(priv, STATION_STATE_SCANNING);
2748}
2749
2750static void join(struct atmel_private *priv, int type)
2751{
2752 struct {
2753 u8 BSSID[6];
2754 u8 SSID[MAX_SSID_LENGTH];
2755 u8 BSS_type; /* this is a short in a scan command - weird */
2756 u8 channel;
0e5ce1f3 2757 __le16 timeout;
1da177e4
LT		 2758 u8 SSID_size;
2759 u8 reserved;
2760 } cmd;
2761
2762 cmd.SSID_size = priv->SSID_size;
2763 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2764 memcpy(cmd.BSSID, priv->CurrentBSSID, 6);
2765 cmd.channel = (priv->channel & 0x7f);
2766 cmd.BSS_type = type;
2767 cmd.timeout = cpu_to_le16(2000);
2768
4d791aad 2769 atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd));
1da177e4
LT		 2770}
2771
1da177e4
LT		 2772static void start(struct atmel_private *priv, int type)
2773{
2774 struct {
2775 u8 BSSID[6];
2776 u8 SSID[MAX_SSID_LENGTH];
4d791aad 2777 u8 BSS_type;
1da177e4
LT		 2778 u8 channel;
2779 u8 SSID_size;
2780 u8 reserved[3];
2781 } cmd;
2782
2783 cmd.SSID_size = priv->SSID_size;
2784 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2785 memcpy(cmd.BSSID, priv->BSSID, 6);
2786 cmd.BSS_type = type;
2787 cmd.channel = (priv->channel & 0x7f);
2788
4d791aad 2789 atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd));
1da177e4
LT		 2790}
2791
4d791aad
CP		 2792static void handle_beacon_probe(struct atmel_private *priv, u16 capability,
2793 u8 channel)
1da177e4
LT		 2794{
2795 int rejoin = 0;
2c706002 2796 int new = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
1da177e4
LT		 2797 SHORT_PREAMBLE : LONG_PREAMBLE;
2798
2799 if (priv->preamble != new) {
2800 priv->preamble = new;
2801 rejoin = 1;
2802 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new);
2803 }
4d791aad 2804
1da177e4
LT		 2805 if (priv->channel != channel) {
2806 priv->channel = channel;
2807 rejoin = 1;
2808 atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel);
2809 }
4d791aad 2810
1da177e4
LT		 2811 if (rejoin) {
2812 priv->station_is_associated = 0;
2813 atmel_enter_state(priv, STATION_STATE_JOINNING);
4d791aad 2814
1da177e4
LT		 2815 if (priv->operating_mode == IW_MODE_INFRA)
2816 join(priv, BSS_TYPE_INFRASTRUCTURE);
4d791aad 2817 else
1da177e4 2818 join(priv, BSS_TYPE_AD_HOC);
4d791aad 2819 }
1da177e4
LT		 2820}
2821
4d791aad
CP		 2822static void send_authentication_request(struct atmel_private *priv, u16 system,
2823 u8 *challenge, int challenge_len)
1da177e4 2824{
2c706002 2825 struct ieee80211_hdr header;
1da177e4 2826 struct auth_body auth;
4d791aad 2827
2c706002 2828 header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
4d791aad 2829 header.duration_id = cpu_to_le16(0x8000);
2c706002 2830 header.seq_ctrl = 0;
1da177e4
LT		 2831 memcpy(header.addr1, priv->CurrentBSSID, 6);
2832 memcpy(header.addr2, priv->dev->dev_addr, 6);
2833 memcpy(header.addr3, priv->CurrentBSSID, 6);
4d791aad
CP		 2834
2835 if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1)
1da177e4 2836 /* no WEP for authentication frames with TrSeqNo 1 */
2c706002 2837 header.frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
4d791aad
CP		 2838
2839 auth.alg = cpu_to_le16(system);
1da177e4
LT		 2840
2841 auth.status = 0;
2842 auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum);
4d791aad 2843 priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1;
1da177e4 2844 priv->CurrentAuthentTransactionSeqNum += 2;
4d791aad 2845
1da177e4
LT		 2846 if (challenge_len != 0) {
2847 auth.el_id = 16; /* challenge_text */
2848 auth.chall_text_len = challenge_len;
2849 memcpy(auth.chall_text, challenge, challenge_len);
2850 atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len);
2851 } else {
2852 atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6);
2853 }
2854}
2855
2856static void send_association_request(struct atmel_private *priv, int is_reassoc)
2857{
2858 u8 *ssid_el_p;
2859 int bodysize;
2c706002 2860 struct ieee80211_hdr header;
1da177e4 2861 struct ass_req_format {
0e5ce1f3
AV		 2862 __le16 capability;
2863 __le16 listen_interval;
1da177e4
LT		 2864 u8 ap[6]; /* nothing after here directly accessible */
2865 u8 ssid_el_id;
2866 u8 ssid_len;
2867 u8 ssid[MAX_SSID_LENGTH];
2868 u8 sup_rates_el_id;
2869 u8 sup_rates_len;
2870 u8 rates[4];
2871 } body;
4d791aad 2872
2c706002 2873 header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
b453872c 2874 (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ));
1da177e4 2875 header.duration_id = cpu_to_le16(0x8000);
2c706002 2876 header.seq_ctrl = 0;
1da177e4 2877
4d791aad 2878 memcpy(header.addr1, priv->CurrentBSSID, 6);
1da177e4 2879 memcpy(header.addr2, priv->dev->dev_addr, 6);
4d791aad 2880 memcpy(header.addr3, priv->CurrentBSSID, 6);
1da177e4 2881
4861dd79 2882 body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
1da177e4 2883 if (priv->wep_is_on)
4861dd79 2884 body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1da177e4 2885 if (priv->preamble == SHORT_PREAMBLE)
2c706002 2886 body.capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1da177e4
LT		 2887
2888 body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period);
4d791aad 2889
1da177e4
LT		 2890 /* current AP address - only in reassoc frame */
2891 if (is_reassoc) {
4d791aad 2892 memcpy(body.ap, priv->CurrentBSSID, 6);
1da177e4
LT		 2893 ssid_el_p = (u8 *)&body.ssid_el_id;
2894 bodysize = 18 + priv->SSID_size;
2895 } else {
2896 ssid_el_p = (u8 *)&body.ap[0];
2897 bodysize = 12 + priv->SSID_size;
2898 }
4d791aad 2899
2c706002 2900 ssid_el_p[0] = WLAN_EID_SSID;
1da177e4
LT		 2901 ssid_el_p[1] = priv->SSID_size;
2902 memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size);
2c706002 2903 ssid_el_p[2 + priv->SSID_size] = WLAN_EID_SUPP_RATES;
1da177e4
LT		 2904 ssid_el_p[3 + priv->SSID_size] = 4; /* len of suported rates */
2905 memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4);
2906
2907 atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize);
2908}
2909
4d791aad 2910static int is_frame_from_current_bss(struct atmel_private *priv,
2c706002 2911 struct ieee80211_hdr *header)
1da177e4 2912{
2c706002 2913 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
1da177e4
LT		 2914 return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0;
2915 else
2916 return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0;
2917}
2918
2919static int retrieve_bss(struct atmel_private *priv)
2920{
2921 int i;
2922 int max_rssi = -128;
2923 int max_index = -1;
4d791aad 2924
1da177e4
LT		 2925 if (priv->BSS_list_entries == 0)
2926 return -1;
4d791aad 2927
1da177e4 2928 if (priv->connect_to_any_BSS) {
4d791aad
CP		 2929 /* Select a BSS with the max-RSSI but of the same type and of
2930 the same WEP mode and that it is not marked as 'bad' (i.e.
2931 we had previously failed to connect to this BSS with the
2932 settings that we currently use) */
1da177e4 2933 priv->current_BSS = 0;
4d791aad 2934 for (i = 0; i < priv->BSS_list_entries; i++) {
1da177e4 2935 if (priv->operating_mode == priv->BSSinfo[i].BSStype &&
4d791aad 2936 ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) ||
1da177e4
LT		 2937 (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) &&
2938 !(priv->BSSinfo[i].channel & 0x80)) {
2939 max_rssi = priv->BSSinfo[i].RSSI;
2940 priv->current_BSS = max_index = i;
2941 }
1da177e4
LT		 2942 }
2943 return max_index;
2944 }
4d791aad
CP		 2945
2946 for (i = 0; i < priv->BSS_list_entries; i++) {
1da177e4
LT		 2947 if (priv->SSID_size == priv->BSSinfo[i].SSIDsize &&
2948 memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 &&
2949 priv->operating_mode == priv->BSSinfo[i].BSStype &&
2950 atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) {
2951 if (priv->BSSinfo[i].RSSI >= max_rssi) {
2952 max_rssi = priv->BSSinfo[i].RSSI;
2953 max_index = i;
2954 }
2955 }
2956 }
2957 return max_index;
2958}
2959
4d791aad 2960static void store_bss_info(struct atmel_private *priv,
2c706002 2961 struct ieee80211_hdr *header, u16 capability,
4d791aad
CP		 2962 u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len,
2963 u8 *ssid, int is_beacon)
1da177e4 2964{
4861dd79 2965 u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3;
1da177e4 2966 int i, index;
4d791aad
CP		 2967
2968 for (index = -1, i = 0; i < priv->BSS_list_entries; i++)
2969 if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0)
1da177e4
LT		 2970 index = i;
2971
4d791aad 2972 /* If we process a probe and an entry from this BSS exists
1da177e4
LT		 2973 we will update the BSS entry with the info from this BSS.
2974 If we process a beacon we will only update RSSI */
2975
2976 if (index == -1) {
2977 if (priv->BSS_list_entries == MAX_BSS_ENTRIES)
2978 return;
2979 index = priv->BSS_list_entries++;
2980 memcpy(priv->BSSinfo[index].BSSID, bss, 6);
2981 priv->BSSinfo[index].RSSI = rssi;
2982 } else {
2983 if (rssi > priv->BSSinfo[index].RSSI)
2984 priv->BSSinfo[index].RSSI = rssi;
2985 if (is_beacon)
2986 return;
2987 }
2988
2989 priv->BSSinfo[index].channel = channel;
2990 priv->BSSinfo[index].beacon_period = beacon_period;
4861dd79 2991 priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY;
1da177e4
LT		 2992 memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len);
2993 priv->BSSinfo[index].SSIDsize = ssid_len;
2994
4861dd79 2995 if (capability & WLAN_CAPABILITY_IBSS)
1da177e4 2996 priv->BSSinfo[index].BSStype = IW_MODE_ADHOC;
4861dd79 2997 else if (capability & WLAN_CAPABILITY_ESS)
1da177e4 2998 priv->BSSinfo[index].BSStype =IW_MODE_INFRA;
4d791aad 2999
2c706002 3000 priv->BSSinfo[index].preamble = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
1da177e4
LT		 3001 SHORT_PREAMBLE : LONG_PREAMBLE;
3002}
3003
3004static void authenticate(struct atmel_private *priv, u16 frame_len)
3005{
3006 struct auth_body *auth = (struct auth_body *)priv->rx_buf;
3007 u16 status = le16_to_cpu(auth->status);
3008 u16 trans_seq_no = le16_to_cpu(auth->trans_seq);
b16a228d 3009 u16 system = le16_to_cpu(auth->alg);
4d791aad 3010
4861dd79 3011 if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) {
1da177e4
LT		 3012 /* no WEP */
3013 if (priv->station_was_associated) {
3014 atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
3015 send_association_request(priv, 1);
3016 return;
3017 } else {
3018 atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
3019 send_association_request(priv, 0);
3020 return;
4d791aad 3021 }
1da177e4 3022 }
4d791aad 3023
4861dd79 3024 if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) {
73451379 3025 int should_associate = 0;
1da177e4
LT		 3026 /* WEP */
3027 if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum)
3028 return;
4d791aad 3029
4861dd79 3030 if (system == WLAN_AUTH_OPEN) {
73451379
DW		 3031 if (trans_seq_no == 0x0002) {
3032 should_associate = 1;
3033 }
4861dd79 3034 } else if (system == WLAN_AUTH_SHARED_KEY) {
73451379 3035 if (trans_seq_no == 0x0002 &&
2c706002 3036 auth->el_id == WLAN_EID_CHALLENGE) {
73451379
DW		 3037 send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len);
3038 return;
3039 } else if (trans_seq_no == 0x0004) {
3040 should_associate = 1;
3041 }
1da177e4 3042 }
4d791aad 3043
73451379 3044 if (should_associate) {
1da177e4
LT		 3045 if(priv->station_was_associated) {
3046 atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
3047 send_association_request(priv, 1);
3048 return;
3049 } else {
3050 atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
3051 send_association_request(priv, 0);
3052 return;
4d791aad 3053 }
1da177e4 3054 }
4d791aad
CP		 3055 }
3056
73451379 3057 if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
d0c2912f
DW		 3058 /* Flip back and forth between WEP auth modes until the max
3059 * authentication tries has been exceeded.
3060 */
73451379 3061 if (system == WLAN_AUTH_OPEN) {
b16a228d 3062 priv->CurrentAuthentTransactionSeqNum = 0x001;
73451379
DW		 3063 priv->exclude_unencrypted = 1;
3064 send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0);
3065 return;
d0c2912f
DW		 3066 } else if ( system == WLAN_AUTH_SHARED_KEY
3067 && priv->wep_is_on) {
3068 priv->CurrentAuthentTransactionSeqNum = 0x001;
3069 priv->exclude_unencrypted = 0;
3070 send_authentication_request(priv, WLAN_AUTH_OPEN, NULL, 0);
3071 return;
b16a228d 3072 } else if (priv->connect_to_any_BSS) {
3073 int bss_index;
4d791aad 3074
b16a228d 3075 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
4d791aad 3076
b16a228d 3077 if ((bss_index = retrieve_bss(priv)) != -1) {
3078 atmel_join_bss(priv, bss_index);
3079 return;
3080 }
1da177e4
LT		 3081 }
3082 }
4d791aad 3083
1da177e4
LT		 3084 priv->AuthenticationRequestRetryCnt = 0;
3085 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3086 priv->station_is_associated = 0;
3087}
3088
3089static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype)
3090{
3091 struct ass_resp_format {
0e5ce1f3
AV		 3092 __le16 capability;
3093 __le16 status;
3094 __le16 ass_id;
1da177e4
LT		 3095 u8 el_id;
3096 u8 length;
3097 u8 rates[4];
3098 } *ass_resp = (struct ass_resp_format *)priv->rx_buf;
4d791aad
CP		 3099
3100 u16 status = le16_to_cpu(ass_resp->status);
1da177e4 3101 u16 ass_id = le16_to_cpu(ass_resp->ass_id);
4d791aad
CP		 3102 u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length;
3103
9a6301c1
DW		 3104 union iwreq_data wrqu;
3105
1da177e4
LT		 3106 if (frame_len < 8 + rates_len)
3107 return;
4d791aad 3108
4861dd79
DW		 3109 if (status == WLAN_STATUS_SUCCESS) {
3110 if (subtype == IEEE80211_STYPE_ASSOC_RESP)
1da177e4
LT		 3111 priv->AssociationRequestRetryCnt = 0;
3112 else
3113 priv->ReAssociationRequestRetryCnt = 0;
4d791aad
CP		 3114
3115 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3116 MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff);
3117 atmel_set_mib(priv, Phy_Mib_Type,
3118 PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len);
1da177e4
LT		 3119 if (priv->power_mode == 0) {
3120 priv->listen_interval = 1;
4d791aad
CP		 3121 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3122 MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3123 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3124 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
1da177e4
LT		 3125 } else {
3126 priv->listen_interval = 2;
4d791aad
CP		 3127 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3128 MAC_MGMT_MIB_PS_MODE_POS, PS_MODE);
3129 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3130 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2);
1da177e4 3131 }
4d791aad 3132
1da177e4
LT		 3133 priv->station_is_associated = 1;
3134 priv->station_was_associated = 1;
3135 atmel_enter_state(priv, STATION_STATE_READY);
9a6301c1
DW		 3136
3137 /* Send association event to userspace */
3138 wrqu.data.length = 0;
3139 wrqu.data.flags = 0;
3140 memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN);
3141 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3142 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
3143
1da177e4
LT		 3144 return;
3145 }
4d791aad 3146
4861dd79
DW		 3147 if (subtype == IEEE80211_STYPE_ASSOC_RESP &&
3148 status != WLAN_STATUS_ASSOC_DENIED_RATES &&
3149 status != WLAN_STATUS_CAPS_UNSUPPORTED &&
1da177e4
LT		 3150 priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
3151 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3152 priv->AssociationRequestRetryCnt++;
3153 send_association_request(priv, 0);
3154 return;
3155 }
4d791aad 3156
4861dd79
DW		 3157 if (subtype == IEEE80211_STYPE_REASSOC_RESP &&
3158 status != WLAN_STATUS_ASSOC_DENIED_RATES &&
3159 status != WLAN_STATUS_CAPS_UNSUPPORTED &&
1da177e4
LT		 3160 priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
3161 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3162 priv->ReAssociationRequestRetryCnt++;
3163 send_association_request(priv, 1);
3164 return;
3165 }
4d791aad 3166
1da177e4
LT		 3167 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3168 priv->station_is_associated = 0;
4d791aad
CP		 3169
3170 if (priv->connect_to_any_BSS) {
1da177e4
LT		 3171 int bss_index;
3172 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
4d791aad
CP		 3173
3174 if ((bss_index = retrieve_bss(priv)) != -1)
1da177e4 3175 atmel_join_bss(priv, bss_index);
1da177e4
LT		 3176 }
3177}
3178
2ed5ba89 3179static void atmel_join_bss(struct atmel_private *priv, int bss_index)
1da177e4
LT		 3180{
3181 struct bss_info *bss = &priv->BSSinfo[bss_index];
3182
3183 memcpy(priv->CurrentBSSID, bss->BSSID, 6);
3184 memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize);
3185
3186 /* The WPA stuff cares about the current AP address */
3187 if (priv->use_wpa)
3188 build_wpa_mib(priv);
4d791aad 3189
1da177e4
LT		 3190 /* When switching to AdHoc turn OFF Power Save if needed */
3191
3192 if (bss->BSStype == IW_MODE_ADHOC &&
3193 priv->operating_mode != IW_MODE_ADHOC &&
3194 priv->power_mode) {
3195 priv->power_mode = 0;
3196 priv->listen_interval = 1;
4d791aad
CP		 3197 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3198 MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3199 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3200 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
1da177e4 3201 }
4d791aad 3202
1da177e4 3203 priv->operating_mode = bss->BSStype;
4d791aad 3204 priv->channel = bss->channel & 0x7f;
1da177e4 3205 priv->beacon_period = bss->beacon_period;
4d791aad 3206
1da177e4
LT		 3207 if (priv->preamble != bss->preamble) {
3208 priv->preamble = bss->preamble;
4d791aad
CP		 3209 atmel_set_mib8(priv, Local_Mib_Type,
3210 LOCAL_MIB_PREAMBLE_TYPE, bss->preamble);
1da177e4 3211 }
4d791aad 3212
1da177e4
LT		 3213 if (!priv->wep_is_on && bss->UsingWEP) {
3214 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3215 priv->station_is_associated = 0;
3216 return;
3217 }
4d791aad 3218
1da177e4
LT		 3219 if (priv->wep_is_on && !bss->UsingWEP) {
3220 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3221 priv->station_is_associated = 0;
3222 return;
3223 }
3224
3225 atmel_enter_state(priv, STATION_STATE_JOINNING);
4d791aad 3226
1da177e4
LT		 3227 if (priv->operating_mode == IW_MODE_INFRA)
3228 join(priv, BSS_TYPE_INFRASTRUCTURE);
4d791aad 3229 else
1da177e4
LT		 3230 join(priv, BSS_TYPE_AD_HOC);
3231}
3232
1da177e4
LT		 3233static void restart_search(struct atmel_private *priv)
3234{
3235 int bss_index;
4d791aad 3236
1da177e4
LT		 3237 if (!priv->connect_to_any_BSS) {
3238 atmel_scan(priv, 1);
3239 } else {
3240 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
4d791aad
CP		 3241
3242 if ((bss_index = retrieve_bss(priv)) != -1)
1da177e4
LT		 3243 atmel_join_bss(priv, bss_index);
3244 else
3245 atmel_scan(priv, 0);
4d791aad
CP		 3246 }
3247}
1da177e4
LT		 3248
3249static void smooth_rssi(struct atmel_private *priv, u8 rssi)
3250{
3251 u8 old = priv->wstats.qual.level;
3252 u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */
3253
3254 switch (priv->firmware_type) {
3255 case ATMEL_FW_TYPE_502E:
3256 max_rssi = 63; /* 502-rmfd-reve max by experiment */
3257 break;
3258 default:
3259 break;
3260 }
3261
3262 rssi = rssi * 100 / max_rssi;
4d791aad
CP		 3263 if ((rssi + old) % 2)
3264 priv->wstats.qual.level = (rssi + old) / 2 + 1;
1da177e4 3265 else
4d791aad 3266 priv->wstats.qual.level = (rssi + old) / 2;
1da177e4
LT		 3267 priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
3268 priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID;
3269}
3270
3271static void atmel_smooth_qual(struct atmel_private *priv)
3272{
4d791aad 3273 unsigned long time_diff = (jiffies - priv->last_qual) / HZ;
1da177e4
LT		 3274 while (time_diff--) {
3275 priv->last_qual += HZ;
4d791aad
CP		 3276 priv->wstats.qual.qual = priv->wstats.qual.qual / 2;
3277 priv->wstats.qual.qual +=
1da177e4
LT		 3278 priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000;
3279 priv->beacons_this_sec = 0;
3280 }
3281 priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
3282 priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID;
3283}
3284
3285/* deals with incoming managment frames. */
4d791aad 3286static void atmel_management_frame(struct atmel_private *priv,
2c706002 3287 struct ieee80211_hdr *header,
4d791aad 3288 u16 frame_len, u8 rssi)
1da177e4
LT		 3289{
3290 u16 subtype;
4d791aad 3291
2c706002 3292 subtype = le16_to_cpu(header->frame_control) & IEEE80211_FCTL_STYPE;
4d791aad 3293 switch (subtype) {
4861dd79
DW		 3294 case IEEE80211_STYPE_BEACON:
3295 case IEEE80211_STYPE_PROBE_RESP:
4d791aad 3296
1da177e4
LT		 3297 /* beacon frame has multiple variable-length fields -
3298 never let an engineer loose with a data structure design. */
3299 {
3300 struct beacon_format {
0e5ce1f3
AV		 3301 __le64 timestamp;
3302 __le16 interval;
3303 __le16 capability;
1da177e4
LT		 3304 u8 ssid_el_id;
3305 u8 ssid_length;
3306 /* ssid here */
3307 u8 rates_el_id;
3308 u8 rates_length;
3309 /* rates here */
3310 u8 ds_el_id;
3311 u8 ds_length;
3312 /* ds here */
3313 } *beacon = (struct beacon_format *)priv->rx_buf;
4d791aad 3314
1da177e4
LT		 3315 u8 channel, rates_length, ssid_length;
3316 u64 timestamp = le64_to_cpu(beacon->timestamp);
3317 u16 beacon_interval = le16_to_cpu(beacon->interval);
3318 u16 capability = le16_to_cpu(beacon->capability);
3319 u8 *beaconp = priv->rx_buf;
3320 ssid_length = beacon->ssid_length;
3321 /* this blows chunks. */
4d791aad 3322 if (frame_len < 14 || frame_len < ssid_length + 15)
1da177e4
LT		 3323 return;
3324 rates_length = beaconp[beacon->ssid_length + 15];
3325 if (frame_len < ssid_length + rates_length + 18)
3326 return;
3327 if (ssid_length > MAX_SSID_LENGTH)
3328 return;
3329 channel = beaconp[ssid_length + rates_length + 18];
4d791aad 3330
1da177e4
LT		 3331 if (priv->station_state == STATION_STATE_READY) {
3332 smooth_rssi(priv, rssi);
4d791aad 3333 if (is_frame_from_current_bss(priv, header)) {
1da177e4
LT		 3334 priv->beacons_this_sec++;
3335 atmel_smooth_qual(priv);
3336 if (priv->last_beacon_timestamp) {
3337 /* Note truncate this to 32 bits - kernel can't divide a long long */
3338 u32 beacon_delay = timestamp - priv->last_beacon_timestamp;
3339 int beacons = beacon_delay / (beacon_interval * 1000);
3340 if (beacons > 1)
3341 priv->wstats.miss.beacon += beacons - 1;
3342 }
3343 priv->last_beacon_timestamp = timestamp;
3344 handle_beacon_probe(priv, capability, channel);
3345 }
3346 }
4d791aad
CP		 3347
3348 if (priv->station_state == STATION_STATE_SCANNING)
3349 store_bss_info(priv, header, capability,
3350 beacon_interval, channel, rssi,
3351 ssid_length,
3352 &beacon->rates_el_id,
4861dd79 3353 subtype == IEEE80211_STYPE_BEACON);
1da177e4
LT		 3354 }
3355 break;
4d791aad 3356
4861dd79 3357 case IEEE80211_STYPE_AUTH:
1da177e4
LT		 3358
3359 if (priv->station_state == STATION_STATE_AUTHENTICATING)
3360 authenticate(priv, frame_len);
4d791aad 3361
1da177e4 3362 break;
4d791aad 3363
4861dd79
DW		 3364 case IEEE80211_STYPE_ASSOC_RESP:
3365 case IEEE80211_STYPE_REASSOC_RESP:
4d791aad
CP		 3366
3367 if (priv->station_state == STATION_STATE_ASSOCIATING ||
1da177e4
LT		 3368 priv->station_state == STATION_STATE_REASSOCIATING)
3369 associate(priv, frame_len, subtype);
4d791aad 3370
1da177e4
LT		 3371 break;
3372
4861dd79 3373 case IEEE80211_STYPE_DISASSOC:
4d791aad
CP		 3374 if (priv->station_is_associated &&
3375 priv->operating_mode == IW_MODE_INFRA &&
1da177e4
LT		 3376 is_frame_from_current_bss(priv, header)) {
3377 priv->station_was_associated = 0;
3378 priv->station_is_associated = 0;
4d791aad 3379
1da177e4
LT		 3380 atmel_enter_state(priv, STATION_STATE_JOINNING);
3381 join(priv, BSS_TYPE_INFRASTRUCTURE);
3382 }
4d791aad 3383
1da177e4
LT		 3384 break;
3385
4861dd79 3386 case IEEE80211_STYPE_DEAUTH:
1da177e4
LT		 3387 if (priv->operating_mode == IW_MODE_INFRA &&
3388 is_frame_from_current_bss(priv, header)) {
3389 priv->station_was_associated = 0;
3390
3391 atmel_enter_state(priv, STATION_STATE_JOINNING);
3392 join(priv, BSS_TYPE_INFRASTRUCTURE);
3393 }
4d791aad 3394
1da177e4
LT		 3395 break;
3396 }
3397}
3398
3399/* run when timer expires */
3400static void atmel_management_timer(u_long a)
3401{
4d791aad
CP		 3402 struct net_device *dev = (struct net_device *) a;
3403 struct atmel_private *priv = netdev_priv(dev);
3404 unsigned long flags;
1da177e4 3405
4d791aad
CP		 3406 /* Check if the card has been yanked. */
3407 if (priv->card && priv->present_callback &&
3408 !(*priv->present_callback)(priv->card))
3409 return;
1da177e4 3410
4d791aad
CP		 3411 spin_lock_irqsave(&priv->irqlock, flags);
3412
3413 switch (priv->station_state) {
1da177e4 3414
4d791aad
CP		 3415 case STATION_STATE_AUTHENTICATING:
3416 if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) {
3417 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3418 priv->station_is_associated = 0;
3419 priv->AuthenticationRequestRetryCnt = 0;
3420 restart_search(priv);
3421 } else {
4861dd79 3422 int auth = WLAN_AUTH_OPEN;
4d791aad
CP		 3423 priv->AuthenticationRequestRetryCnt++;
3424 priv->CurrentAuthentTransactionSeqNum = 0x0001;
3425 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
73451379 3426 if (priv->wep_is_on && priv->exclude_unencrypted)
4861dd79 3427 auth = WLAN_AUTH_SHARED_KEY;
73451379 3428 send_authentication_request(priv, auth, NULL, 0);
4d791aad 3429 }
1da177e4 3430 break;
4d791aad
CP		 3431
3432 case STATION_STATE_ASSOCIATING:
3433 if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
3434 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3435 priv->station_is_associated = 0;
3436 priv->AssociationRequestRetryCnt = 0;
3437 restart_search(priv);
3438 } else {
3439 priv->AssociationRequestRetryCnt++;
3440 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3441 send_association_request(priv, 0);
3442 }
1da177e4 3443 break;
4d791aad
CP		 3444
3445 case STATION_STATE_REASSOCIATING:
3446 if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
3447 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3448 priv->station_is_associated = 0;
3449 priv->ReAssociationRequestRetryCnt = 0;
3450 restart_search(priv);
3451 } else {
3452 priv->ReAssociationRequestRetryCnt++;
3453 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3454 send_association_request(priv, 1);
3455 }
3456 break;
3457
3458 default:
3459 break;
3460 }
3461
3462 spin_unlock_irqrestore(&priv->irqlock, flags);
1da177e4 3463}
4d791aad 3464
1da177e4
LT		 3465static void atmel_command_irq(struct atmel_private *priv)
3466{
3467 u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
3468 u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET));
3469 int fast_scan;
3a1af6ff 3470 union iwreq_data wrqu;
4d791aad
CP		 3471
3472 if (status == CMD_STATUS_IDLE ||
1da177e4
LT		 3473 status == CMD_STATUS_IN_PROGRESS)
3474 return;
3475
3476 switch (command){
3477
3478 case CMD_Start:
3479 if (status == CMD_STATUS_COMPLETE) {
3480 priv->station_was_associated = priv->station_is_associated;
3481 atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
3482 (u8 *)priv->CurrentBSSID, 6);
3483 atmel_enter_state(priv, STATION_STATE_READY);
4d791aad 3484 }
1da177e4 3485 break;
4d791aad 3486
1da177e4
LT		 3487 case CMD_Scan:
3488 fast_scan = priv->fast_scan;
3489 priv->fast_scan = 0;
4d791aad 3490
1da177e4
LT		 3491 if (status != CMD_STATUS_COMPLETE) {
3492 atmel_scan(priv, 1);
3493 } else {
3494 int bss_index = retrieve_bss(priv);
3a1af6ff 3495 int notify_scan_complete = 1;
1da177e4
LT		 3496 if (bss_index != -1) {
3497 atmel_join_bss(priv, bss_index);
4d791aad 3498 } else if (priv->operating_mode == IW_MODE_ADHOC &&
1da177e4
LT		 3499 priv->SSID_size != 0) {
3500 start(priv, BSS_TYPE_AD_HOC);
3501 } else {
3502 priv->fast_scan = !fast_scan;
3503 atmel_scan(priv, 1);
3a1af6ff 3504 notify_scan_complete = 0;
1da177e4
LT		 3505 }
3506 priv->site_survey_state = SITE_SURVEY_COMPLETED;
3a1af6ff
DW		 3507 if (notify_scan_complete) {
3508 wrqu.data.length = 0;
3509 wrqu.data.flags = 0;
3510 wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
3511 }
1da177e4
LT		 3512 }
3513 break;
4d791aad 3514
1da177e4
LT		 3515 case CMD_SiteSurvey:
3516 priv->fast_scan = 0;
4d791aad 3517
1da177e4
LT		 3518 if (status != CMD_STATUS_COMPLETE)
3519 return;
4d791aad 3520
1da177e4
LT		 3521 priv->site_survey_state = SITE_SURVEY_COMPLETED;
3522 if (priv->station_is_associated) {
4d791aad 3523 atmel_enter_state(priv, STATION_STATE_READY);
3a1af6ff
DW		 3524 wrqu.data.length = 0;
3525 wrqu.data.flags = 0;
3526 wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
1da177e4
LT		 3527 } else {
3528 atmel_scan(priv, 1);
3529 }
3530 break;
3531
3532 case CMD_Join:
3533 if (status == CMD_STATUS_COMPLETE) {
3534 if (priv->operating_mode == IW_MODE_ADHOC) {
3535 priv->station_was_associated = priv->station_is_associated;
3536 atmel_enter_state(priv, STATION_STATE_READY);
3537 } else {
4861dd79 3538 int auth = WLAN_AUTH_OPEN;
1da177e4
LT		 3539 priv->AuthenticationRequestRetryCnt = 0;
3540 atmel_enter_state(priv, STATION_STATE_AUTHENTICATING);
4d791aad 3541
1da177e4
LT		 3542 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3543 priv->CurrentAuthentTransactionSeqNum = 0x0001;
73451379 3544 if (priv->wep_is_on && priv->exclude_unencrypted)
4861dd79 3545 auth = WLAN_AUTH_SHARED_KEY;
73451379 3546 send_authentication_request(priv, auth, NULL, 0);
1da177e4
LT		 3547 }
3548 return;
3549 }
4d791aad 3550
1da177e4 3551 atmel_scan(priv, 1);
1da177e4
LT		 3552 }
3553}
3554
3555static int atmel_wakeup_firmware(struct atmel_private *priv)
3556{
3557 struct host_info_struct *iface = &priv->host_info;
3558 u16 mr1, mr3;
3559 int i;
3560
3561 if (priv->card_type == CARD_TYPE_SPI_FLASH)
3562 atmel_set_gcr(priv->dev, GCR_REMAP);
4d791aad 3563
1da177e4
LT		 3564 /* wake up on-board processor */
3565 atmel_clear_gcr(priv->dev, 0x0040);
3566 atmel_write16(priv->dev, BSR, BSS_SRAM);
4d791aad 3567
1da177e4
LT		 3568 if (priv->card_type == CARD_TYPE_SPI_FLASH)
3569 mdelay(100);
3570
3571 /* and wait for it */
4d791aad 3572 for (i = LOOP_RETRY_LIMIT; i; i--) {
1da177e4
LT		 3573 mr1 = atmel_read16(priv->dev, MR1);
3574 mr3 = atmel_read16(priv->dev, MR3);
4d791aad
CP		 3575
3576 if (mr3 & MAC_BOOT_COMPLETE)
1da177e4
LT		 3577 break;
3578 if (mr1 & MAC_BOOT_COMPLETE &&
3579 priv->bus_type == BUS_TYPE_PCCARD)
3580 break;
3581 }
3582
3583 if (i == 0) {
3584 printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name);
3c34a5d8 3585 return -EIO;
1da177e4 3586 }
4d791aad 3587
1da177e4
LT		 3588 if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) {
3589 printk(KERN_ALERT "%s: card missing.\n", priv->dev->name);
3c34a5d8 3590 return -ENODEV;
1da177e4 3591 }
4d791aad
CP		 3592
3593 /* now check for completion of MAC initialization through
3594 the FunCtrl field of the IFACE, poll MR1 to detect completion of
3595 MAC initialization, check completion status, set interrupt mask,
3596 enables interrupts and calls Tx and Rx initialization functions */
3597
1da177e4 3598 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE);
4d791aad
CP		 3599
3600 for (i = LOOP_RETRY_LIMIT; i; i--) {
1da177e4
LT		 3601 mr1 = atmel_read16(priv->dev, MR1);
3602 mr3 = atmel_read16(priv->dev, MR3);
4d791aad
CP		 3603
3604 if (mr3 & MAC_INIT_COMPLETE)
1da177e4
LT		 3605 break;
3606 if (mr1 & MAC_INIT_COMPLETE &&
3607 priv->bus_type == BUS_TYPE_PCCARD)
3608 break;
3609 }
4d791aad 3610
1da177e4 3611 if (i == 0) {
4d791aad
CP		 3612 printk(KERN_ALERT "%s: MAC failed to initialise.\n",
3613 priv->dev->name);
3c34a5d8 3614 return -EIO;
1da177e4 3615 }
4d791aad 3616
1da177e4
LT		 3617 /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */
3618 if ((mr3 & MAC_INIT_COMPLETE) &&
3619 !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) {
3620 printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name);
3c34a5d8 3621 return -EIO;
1da177e4
LT		 3622 }
3623 if ((mr1 & MAC_INIT_COMPLETE) &&
3624 !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) {
3625 printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name);
3c34a5d8 3626 return -EIO;
1da177e4
LT		 3627 }
3628
4d791aad 3629 atmel_copy_to_host(priv->dev, (unsigned char *)iface,
1da177e4 3630 priv->host_info_base, sizeof(*iface));
4d791aad 3631
1da177e4
LT		 3632 iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos);
3633 iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size);
3634 iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos);
3635 iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count);
3636 iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos);
3637 iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size);
3638 iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos);
3639 iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count);
3640 iface->build_version = le16_to_cpu(iface->build_version);
3641 iface->command_pos = le16_to_cpu(iface->command_pos);
3642 iface->major_version = le16_to_cpu(iface->major_version);
3643 iface->minor_version = le16_to_cpu(iface->minor_version);
3644 iface->func_ctrl = le16_to_cpu(iface->func_ctrl);
3645 iface->mac_status = le16_to_cpu(iface->mac_status);
3646
3c34a5d8 3647 return 0;
1da177e4
LT		 3648}
3649
3650/* determine type of memory and MAC address */
3651static int probe_atmel_card(struct net_device *dev)
3652{
3653 int rc = 0;
3654 struct atmel_private *priv = netdev_priv(dev);
4d791aad 3655
1da177e4 3656 /* reset pccard */
4d791aad 3657 if (priv->bus_type == BUS_TYPE_PCCARD)
1da177e4 3658 atmel_write16(dev, GCR, 0x0060);
4d791aad 3659
1da177e4
LT		 3660 atmel_write16(dev, GCR, 0x0040);
3661 mdelay(500);
4d791aad 3662
1da177e4 3663 if (atmel_read16(dev, MR2) == 0) {
4d791aad 3664 /* No stored firmware so load a small stub which just
1da177e4
LT		 3665 tells us the MAC address */
3666 int i;
3667 priv->card_type = CARD_TYPE_EEPROM;
3668 atmel_write16(dev, BSR, BSS_IRAM);
3669 atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader));
3670 atmel_set_gcr(dev, GCR_REMAP);
3671 atmel_clear_gcr(priv->dev, 0x0040);
3672 atmel_write16(dev, BSR, BSS_SRAM);
4d791aad 3673 for (i = LOOP_RETRY_LIMIT; i; i--)
1da177e4
LT		 3674 if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE)
3675 break;
3676 if (i == 0) {
3677 printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name);
3678 } else {
3679 atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6);
3680 /* got address, now squash it again until the network
3681 interface is opened */
4d791aad 3682 if (priv->bus_type == BUS_TYPE_PCCARD)
1da177e4
LT		 3683 atmel_write16(dev, GCR, 0x0060);
3684 atmel_write16(dev, GCR, 0x0040);
3685 rc = 1;
3686 }
3687 } else if (atmel_read16(dev, MR4) == 0) {
3688 /* Mac address easy in this case. */
3689 priv->card_type = CARD_TYPE_PARALLEL_FLASH;
4d791aad 3690 atmel_write16(dev, BSR, 1);
1da177e4
LT		 3691 atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6);
3692 atmel_write16(dev, BSR, 0x200);
3693 rc = 1;
3694 } else {
3695 /* Standard firmware in flash, boot it up and ask
3696 for the Mac Address */
3697 priv->card_type = CARD_TYPE_SPI_FLASH;
3c34a5d8 3698 if (atmel_wakeup_firmware(priv) == 0) {
1da177e4 3699 atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6);
4d791aad 3700
1da177e4
LT		 3701 /* got address, now squash it again until the network
3702 interface is opened */
4d791aad 3703 if (priv->bus_type == BUS_TYPE_PCCARD)
1da177e4
LT		 3704 atmel_write16(dev, GCR, 0x0060);
3705 atmel_write16(dev, GCR, 0x0040);
3706 rc = 1;
3707 }
3708 }
4d791aad 3709
1da177e4
LT		 3710 if (rc) {
3711 if (dev->dev_addr[0] == 0xFF) {
3712 u8 default_mac[] = {0x00,0x04, 0x25, 0x00, 0x00, 0x00};
3713 printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name);
3714 memcpy(dev->dev_addr, default_mac, 6);
3715 }
1da177e4 3716 }
4d791aad 3717
1da177e4
LT		 3718 return rc;
3719}
3720
1da177e4
LT		 3721/* Move the encyption information on the MIB structure.
3722 This routine is for the pre-WPA firmware: later firmware has
3723 a different format MIB and a different routine. */
4d791aad 3724static void build_wep_mib(struct atmel_private *priv)
1da177e4
LT		 3725{
3726 struct { /* NB this is matched to the hardware, don't change. */
4d791aad 3727 u8 wep_is_on;
1da177e4
LT		 3728 u8 default_key; /* 0..3 */
3729 u8 reserved;
3730 u8 exclude_unencrypted;
4d791aad 3731
1da177e4
LT		 3732 u32 WEPICV_error_count;
3733 u32 WEP_excluded_count;
4d791aad 3734
1da177e4 3735 u8 wep_keys[MAX_ENCRYPTION_KEYS][13];
4d791aad
CP		 3736 u8 encryption_level; /* 0, 1, 2 */
3737 u8 reserved2[3];
1da177e4
LT		 3738 } mib;
3739 int i;
3740
3741 mib.wep_is_on = priv->wep_is_on;
3742 if (priv->wep_is_on) {
3743 if (priv->wep_key_len[priv->default_key] > 5)
3744 mib.encryption_level = 2;
3745 else
4d791aad 3746 mib.encryption_level = 1;
1da177e4
LT		 3747 } else {
3748 mib.encryption_level = 0;
3749 }
3750
3751 mib.default_key = priv->default_key;
3752 mib.exclude_unencrypted = priv->exclude_unencrypted;
4d791aad
CP		 3753
3754 for (i = 0; i < MAX_ENCRYPTION_KEYS; i++)
1da177e4 3755 memcpy(mib.wep_keys[i], priv->wep_keys[i], 13);
4d791aad 3756
1da177e4
LT		 3757 atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
3758}
3759
3760static void build_wpa_mib(struct atmel_private *priv)
3761{
4d791aad 3762 /* This is for the later (WPA enabled) firmware. */
1da177e4
LT		 3763
3764 struct { /* NB this is matched to the hardware, don't change. */
3765 u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
3766 u8 receiver_address[6];
4d791aad 3767 u8 wep_is_on;
1da177e4
LT		 3768 u8 default_key; /* 0..3 */
3769 u8 group_key;
3770 u8 exclude_unencrypted;
3771 u8 encryption_type;
3772 u8 reserved;
4d791aad 3773
1da177e4
LT		 3774 u32 WEPICV_error_count;
3775 u32 WEP_excluded_count;
4d791aad 3776
1da177e4
LT		 3777 u8 key_RSC[4][8];
3778 } mib;
4d791aad 3779
1da177e4
LT		 3780 int i;
3781
3782 mib.wep_is_on = priv->wep_is_on;
3783 mib.exclude_unencrypted = priv->exclude_unencrypted;
3784 memcpy(mib.receiver_address, priv->CurrentBSSID, 6);
4d791aad 3785
1da177e4
LT		 3786 /* zero all the keys before adding in valid ones. */
3787 memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value));
4d791aad 3788
1da177e4 3789 if (priv->wep_is_on) {
4d791aad
CP		 3790 /* There's a comment in the Atmel code to the effect that this
3791 is only valid when still using WEP, it may need to be set to
3792 something to use WPA */
1da177e4 3793 memset(mib.key_RSC, 0, sizeof(mib.key_RSC));
4d791aad 3794
1da177e4
LT		 3795 mib.default_key = mib.group_key = 255;
3796 for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) {
3797 if (priv->wep_key_len[i] > 0) {
3798 memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE);
3799 if (i == priv->default_key) {
3800 mib.default_key = i;
3801 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7;
4d791aad 3802 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite;
1da177e4
LT		 3803 } else {
3804 mib.group_key = i;
3805 priv->group_cipher_suite = priv->pairwise_cipher_suite;
3806 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1;
4d791aad 3807 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite;
1da177e4
LT		 3808 }
3809 }
3810 }
3811 if (mib.default_key == 255)
3812 mib.default_key = mib.group_key != 255 ? mib.group_key : 0;
3813 if (mib.group_key == 255)
3814 mib.group_key = mib.default_key;
4d791aad 3815
1da177e4 3816 }
4d791aad 3817
1da177e4
LT		 3818 atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
3819}
4d791aad
CP		 3820
3821static int reset_atmel_card(struct net_device *dev)
1da177e4
LT		 3822{
3823 /* do everything necessary to wake up the hardware, including
3824 waiting for the lightning strike and throwing the knife switch....
3825
4d791aad 3826 set all the Mib values which matter in the card to match
1da177e4
LT		 3827 their settings in the atmel_private structure. Some of these
3828 can be altered on the fly, but many (WEP, infrastucture or ad-hoc)
3829 can only be changed by tearing down the world and coming back through
3830 here.
3831
4d791aad
CP		 3832 This routine is also responsible for initialising some
3833 hardware-specific fields in the atmel_private structure,
1da177e4 3834 including a copy of the firmware's hostinfo stucture
d535295b 3835 which is the route into the rest of the firmware datastructures. */
1da177e4
LT		 3836
3837 struct atmel_private *priv = netdev_priv(dev);
3838 u8 configuration;
9a6301c1 3839 int old_state = priv->station_state;
3c34a5d8 3840 int err = 0;
4d791aad 3841
1da177e4
LT		 3842 /* data to add to the firmware names, in priority order
3843 this implemenents firmware versioning */
4d791aad 3844
1da177e4
LT		 3845 static char *firmware_modifier[] = {
3846 "-wpa",
3847 "",
3848 NULL
3849 };
4d791aad 3850
1da177e4 3851 /* reset pccard */
4d791aad 3852 if (priv->bus_type == BUS_TYPE_PCCARD)
1da177e4 3853 atmel_write16(priv->dev, GCR, 0x0060);
4d791aad 3854
1da177e4
LT		 3855 /* stop card , disable interrupts */
3856 atmel_write16(priv->dev, GCR, 0x0040);
4d791aad 3857
1da177e4
LT		 3858 if (priv->card_type == CARD_TYPE_EEPROM) {
3859 /* copy in firmware if needed */
3860 const struct firmware *fw_entry = NULL;
2f26e8af 3861 const unsigned char *fw;
1da177e4
LT		 3862 int len = priv->firmware_length;
3863 if (!(fw = priv->firmware)) {
3864 if (priv->firmware_type == ATMEL_FW_TYPE_NONE) {
3865 if (strlen(priv->firmware_id) == 0) {
3866 printk(KERN_INFO
3867 "%s: card type is unknown: assuming at76c502 firmware is OK.\n",
3868 dev->name);
3869 printk(KERN_INFO
4d791aad 3870 "%s: if not, use the firmware= module parameter.\n",
1da177e4
LT		 3871 dev->name);
3872 strcpy(priv->firmware_id, "atmel_at76c502.bin");
3873 }
3c34a5d8
DW		 3874 err = request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev);
3875 if (err != 0) {
4d791aad
CP		 3876 printk(KERN_ALERT
3877 "%s: firmware %s is missing, cannot continue.\n",
1da177e4 3878 dev->name, priv->firmware_id);
3c34a5d8 3879 return err;
1da177e4
LT		 3880 }
3881 } else {
3882 int fw_index = 0;
3883 int success = 0;
3884
3885 /* get firmware filename entry based on firmware type ID */
3886 while (fw_table[fw_index].fw_type != priv->firmware_type
3887 && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE)
3888 fw_index++;
4d791aad 3889
1da177e4
LT		 3890 /* construct the actual firmware file name */
3891 if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) {
3892 int i;
3893 for (i = 0; firmware_modifier[i]; i++) {
3894 snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file,
3895 firmware_modifier[i], fw_table[fw_index].fw_file_ext);
3896 priv->firmware_id[31] = '\0';
3897 if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) {
3898 success = 1;
3899 break;
3900 }
3901 }
3902 }
3903 if (!success) {
4d791aad
CP		 3904 printk(KERN_ALERT
3905 "%s: firmware %s is missing, cannot start.\n",
1da177e4
LT		 3906 dev->name, priv->firmware_id);
3907 priv->firmware_id[0] = '\0';
3c34a5d8 3908 return -ENOENT;
1da177e4
LT		 3909 }
3910 }
4d791aad 3911
1da177e4
LT		 3912 fw = fw_entry->data;
3913 len = fw_entry->size;
3914 }
4d791aad 3915
1da177e4
LT		 3916 if (len <= 0x6000) {
3917 atmel_write16(priv->dev, BSR, BSS_IRAM);
3918 atmel_copy_to_card(priv->dev, 0, fw, len);
3919 atmel_set_gcr(priv->dev, GCR_REMAP);
3920 } else {
4d791aad 3921 /* Remap */
1da177e4
LT		 3922 atmel_set_gcr(priv->dev, GCR_REMAP);
3923 atmel_write16(priv->dev, BSR, BSS_IRAM);
3924 atmel_copy_to_card(priv->dev, 0, fw, 0x6000);
3925 atmel_write16(priv->dev, BSR, 0x2ff);
3926 atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000);
3927 }
3928
3929 if (fw_entry)
3930 release_firmware(fw_entry);
3931 }
3932
3c34a5d8
DW		 3933 err = atmel_wakeup_firmware(priv);
3934 if (err != 0)
3935 return err;
1da177e4
LT		 3936
3937 /* Check the version and set the correct flag for wpa stuff,
3938 old and new firmware is incompatible.
3939 The pre-wpa 3com firmware reports major version 5,
3940 the wpa 3com firmware is major version 4 and doesn't need
3941 the 3com broken-ness filter. */
3942 priv->use_wpa = (priv->host_info.major_version == 4);
3943 priv->radio_on_broken = (priv->host_info.major_version == 5);
4d791aad 3944
1da177e4
LT		 3945 /* unmask all irq sources */
3946 atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff);
4d791aad 3947
1da177e4
LT		 3948 /* int Tx system and enable Tx */
3949 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0);
3950 atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L);
3951 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0);
3952 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0);
3953
4d791aad
CP		 3954 priv->tx_desc_free = priv->host_info.tx_desc_count;
3955 priv->tx_desc_head = 0;
3956 priv->tx_desc_tail = 0;
1da177e4
LT		 3957 priv->tx_desc_previous = 0;
3958 priv->tx_free_mem = priv->host_info.tx_buff_size;
4d791aad
CP		 3959 priv->tx_buff_head = 0;
3960 priv->tx_buff_tail = 0;
3961
3962 configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
3963 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
1da177e4
LT		 3964 configuration | FUNC_CTRL_TxENABLE);
3965
3966 /* init Rx system and enable */
3967 priv->rx_desc_head = 0;
4d791aad
CP		 3968
3969 configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
3970 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
1da177e4 3971 configuration | FUNC_CTRL_RxENABLE);
4d791aad 3972
1da177e4 3973 if (!priv->radio_on_broken) {
4d791aad 3974 if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) ==
1da177e4 3975 CMD_STATUS_REJECTED_RADIO_OFF) {
3c34a5d8 3976 printk(KERN_INFO "%s: cannot turn the radio on.\n",
1da177e4 3977 dev->name);
3c34a5d8 3978 return -EIO;
1da177e4
LT		 3979 }
3980 }
4d791aad 3981
1da177e4
LT		 3982 /* set up enough MIB values to run. */
3983 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate);
3984 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF);
3985 atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold);
3986 atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold);
3987 atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry);
3988 atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry);
3989 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble);
4d791aad 3990 atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS,
1da177e4
LT		 3991 priv->dev->dev_addr, 6);
3992 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3993 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
3994 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period);
3995 atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4);
3996 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on);
3997 if (priv->use_wpa)
3998 build_wpa_mib(priv);
3999 else
4000 build_wep_mib(priv);
4d791aad 4001
9a6301c1
DW		 4002 if (old_state == STATION_STATE_READY)
4003 {
4004 union iwreq_data wrqu;
4005
4006 wrqu.data.length = 0;
4007 wrqu.data.flags = 0;
4008 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
4009 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
4010 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
4011 }
4012
3c34a5d8 4013 return 0;
1da177e4
LT		 4014}
4015
4d791aad
CP		 4016static void atmel_send_command(struct atmel_private *priv, int command,
4017 void *cmd, int cmd_size)
1da177e4
LT		 4018{
4019 if (cmd)
4d791aad 4020 atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET),
1da177e4 4021 cmd, cmd_size);
4d791aad 4022
1da177e4
LT		 4023 atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command);
4024 atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0);
4025}
4d791aad
CP		 4026
4027static int atmel_send_command_wait(struct atmel_private *priv, int command,
4028 void *cmd, int cmd_size)
1da177e4
LT		 4029{
4030 int i, status;
4d791aad 4031
1da177e4 4032 atmel_send_command(priv, command, cmd, cmd_size);
4d791aad 4033
1da177e4
LT		 4034 for (i = 5000; i; i--) {
4035 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
4d791aad 4036 if (status != CMD_STATUS_IDLE &&
1da177e4
LT		 4037 status != CMD_STATUS_IN_PROGRESS)
4038 break;
4039 udelay(20);
4040 }
4d791aad 4041
1da177e4
LT		 4042 if (i == 0) {
4043 printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name);
4044 status = CMD_STATUS_HOST_ERROR;
4d791aad 4045 } else {
1da177e4
LT		 4046 if (command != CMD_EnableRadio)
4047 status = CMD_STATUS_COMPLETE;
4048 }
4d791aad 4049
1da177e4
LT		 4050 return status;
4051}
4052
4053static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index)
4054{
4055 struct get_set_mib m;
4056 m.type = type;
4057 m.size = 1;
4058 m.index = index;
4059
4060 atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
4061 return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE));
4062}
4063
4064static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data)
4065{
4066 struct get_set_mib m;
4067 m.type = type;
4068 m.size = 1;
4069 m.index = index;
4070 m.data[0] = data;
4071
4072 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
4073}
4074
4d791aad
CP		 4075static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
4076 u16 data)
1da177e4
LT		 4077{
4078 struct get_set_mib m;
4079 m.type = type;
4080 m.size = 2;
4081 m.index = index;
4082 m.data[0] = data;
4083 m.data[1] = data >> 8;
4084
4085 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2);
4086}
4087
4d791aad
CP		 4088static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
4089 u8 *data, int data_len)
1da177e4
LT		 4090{
4091 struct get_set_mib m;
4092 m.type = type;
4093 m.size = data_len;
4094 m.index = index;
4095
4096 if (data_len > MIB_MAX_DATA_BYTES)
4097 printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
4d791aad 4098
1da177e4
LT		 4099 memcpy(m.data, data, data_len);
4100 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
4101}
4102
4d791aad
CP		 4103static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
4104 u8 *data, int data_len)
1da177e4
LT		 4105{
4106 struct get_set_mib m;
4107 m.type = type;
4108 m.size = data_len;
4109 m.index = index;
4d791aad 4110
1da177e4
LT		 4111 if (data_len > MIB_MAX_DATA_BYTES)
4112 printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
4d791aad 4113
1da177e4 4114 atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
4d791aad 4115 atmel_copy_to_host(priv->dev, data,
1da177e4
LT		 4116 atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len);
4117}
4118
4119static void atmel_writeAR(struct net_device *dev, u16 data)
4120{
4121 int i;
4122 outw(data, dev->base_addr + AR);
4123 /* Address register appears to need some convincing..... */
4d791aad 4124 for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++)
1da177e4
LT		 4125 outw(data, dev->base_addr + AR);
4126}
4127
4d791aad 4128static void atmel_copy_to_card(struct net_device *dev, u16 dest,
2f26e8af 4129 const unsigned char *src, u16 len)
1da177e4
LT		 4130{
4131 int i;
4132 atmel_writeAR(dev, dest);
4133 if (dest % 2) {
4134 atmel_write8(dev, DR, *src);
4135 src++; len--;
4136 }
4137 for (i = len; i > 1 ; i -= 2) {
4138 u8 lb = *src++;
4139 u8 hb = *src++;
4140 atmel_write16(dev, DR, lb | (hb << 8));
4141 }
4142 if (i)
4143 atmel_write8(dev, DR, *src);
4144}
4145
4d791aad
CP		 4146static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
4147 u16 src, u16 len)
1da177e4
LT		 4148{
4149 int i;
4150 atmel_writeAR(dev, src);
4151 if (src % 2) {
4152 *dest = atmel_read8(dev, DR);
4153 dest++; len--;
4154 }
4155 for (i = len; i > 1 ; i -= 2) {
4156 u16 hw = atmel_read16(dev, DR);
4157 *dest++ = hw;
4158 *dest++ = hw >> 8;
4159 }
4160 if (i)
4161 *dest = atmel_read8(dev, DR);
4162}
4163
4164static void atmel_set_gcr(struct net_device *dev, u16 mask)
4165{
4166 outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR);
4167}
4168
4169static void atmel_clear_gcr(struct net_device *dev, u16 mask)
4170{
4171 outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR);
4172}
4173
4174static int atmel_lock_mac(struct atmel_private *priv)
4175{
4176 int i, j = 20;
4177 retry:
4178 for (i = 5000; i; i--) {
4179 if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET)))
4180 break;
4181 udelay(20);
4182 }
4d791aad
CP		 4183
4184 if (!i)
4185 return 0; /* timed out */
4186
1da177e4
LT		 4187 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1);
4188 if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) {
4189 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
4d791aad
CP		 4190 if (!j--)
4191 return 0; /* timed out */
1da177e4
LT		 4192 goto retry;
4193 }
4d791aad 4194
1da177e4
LT		 4195 return 1;
4196}
4197
4198static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data)
4199{
4d791aad 4200 atmel_writeAR(priv->dev, pos);
1da177e4
LT		 4201 atmel_write16(priv->dev, DR, data); /* card is little-endian */
4202 atmel_write16(priv->dev, DR, data >> 16);
4203}
4204
4205/***************************************************************************/
4206/* There follows the source form of the MAC address reading firmware */
4207/***************************************************************************/
4208#if 0
4209
4210/* Copyright 2003 Matthew T. Russotto */
4211/* But derived from the Atmel 76C502 firmware written by Atmel and */
4212/* included in "atmel wireless lan drivers" package */
4213/**
4214 This file is part of net.russotto.AtmelMACFW, hereto referred to
4215 as AtmelMACFW
4216
4217 AtmelMACFW is free software; you can redistribute it and/or modify
4218 it under the terms of the GNU General Public License version 2
4219 as published by the Free Software Foundation.
4220
4221 AtmelMACFW is distributed in the hope that it will be useful,
4222 but WITHOUT ANY WARRANTY; without even the implied warranty of
4223 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4224 GNU General Public License for more details.
4225
4226 You should have received a copy of the GNU General Public License
4227 along with AtmelMACFW; if not, write to the Free Software
4228 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
4229
4230****************************************************************************/
4231/* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */
4232/* It will probably work on the 76C504 and 76C502 RFMD_3COM */
4233/* It only works on SPI EEPROM versions of the card. */
4234
4235/* This firmware initializes the SPI controller and clock, reads the MAC */
4236/* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */
4237/* address in MR2, and sets MR3 to 0x10 to indicate it is done */
4238/* It also puts a complete copy of the EEPROM in SRAM with the offset in */
4239/* MR4, for investigational purposes (maybe we can determine chip type */
4240/* from that?) */
4241
4242 .org 0
4243 .set MRBASE, 0x8000000
4244 .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */
4245 .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */
4246 .set SRAM_BASE, 0x02000000
4247 .set SP_BASE, 0x0F300000
4248 .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */
4249 .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */
4250 .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */
4251 .set STACK_BASE, 0x5600
4252 .set SP_SR, 0x10
4253 .set SP_TDRE, 2 /* status register bit -- TDR empty */
4254 .set SP_RDRF, 1 /* status register bit -- RDR full */
4255 .set SP_SWRST, 0x80
4256 .set SP_SPIEN, 0x1
4257 .set SP_CR, 0 /* control register */
4258 .set SP_MR, 4 /* mode register */
4259 .set SP_RDR, 0x08 /* Read Data Register */
4260 .set SP_TDR, 0x0C /* Transmit Data Register */
4261 .set SP_CSR0, 0x30 /* chip select registers */
4262 .set SP_CSR1, 0x34
4263 .set SP_CSR2, 0x38
4264 .set SP_CSR3, 0x3C
4265 .set NVRAM_CMD_RDSR, 5 /* read status register */
4266 .set NVRAM_CMD_READ, 3 /* read data */
4267 .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */
4268 .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the
4269 serial output, since SO is normally high. But it
4270 does cause 8 clock cycles and thus 8 bits to be
4271 clocked in to the chip. See Atmel's SPI
4d791aad 4272 controller (e.g. AT91M55800) timing and 4K
1da177e4 4273 SPI EEPROM manuals */
4d791aad 4274
1da177e4
LT		 4275 .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */
4276 .set NVRAM_IMAGE, 0x02000200
4277 .set NVRAM_LENGTH, 0x0200
4278 .set MAC_ADDRESS_MIB, SRAM_BASE
4279 .set MAC_ADDRESS_LENGTH, 6
4280 .set MAC_BOOT_FLAG, 0x10
4281 .set MR1, 0
4282 .set MR2, 4
4283 .set MR3, 8
4284 .set MR4, 0xC
4285RESET_VECTOR:
4286 b RESET_HANDLER
4d791aad 4287UNDEF_VECTOR:
1da177e4 4288 b HALT1
4d791aad 4289SWI_VECTOR:
1da177e4 4290 b HALT1
4d791aad 4291IABORT_VECTOR:
1da177e4 4292 b HALT1
4d791aad
CP		 4293DABORT_VECTOR:
4294RESERVED_VECTOR:
1da177e4 4295 b HALT1
4d791aad 4296IRQ_VECTOR:
1da177e4 4297 b HALT1
4d791aad 4298FIQ_VECTOR:
1da177e4
LT		 4299 b HALT1
4300HALT1: b HALT1
4301RESET_HANDLER:
4302 mov r0, #CPSR_INITIAL
4303 msr CPSR_c, r0 /* This is probably unnecessary */
4d791aad 4304
1da177e4
LT		 4305/* I'm guessing this is initializing clock generator electronics for SPI */
4306 ldr r0, =SPI_CGEN_BASE
4307 mov r1, #0
4308 mov r1, r1, lsl #3
4309 orr r1,r1, #0
4310 str r1, [r0]
4311 ldr r1, [r0, #28]
4312 bic r1, r1, #16
4313 str r1, [r0, #28]
4314 mov r1, #1
4315 str r1, [r0, #8]
4d791aad 4316
1da177e4
LT		 4317 ldr r0, =MRBASE
4318 mov r1, #0
4319 strh r1, [r0, #MR1]
4320 strh r1, [r0, #MR2]
4321 strh r1, [r0, #MR3]
4322 strh r1, [r0, #MR4]
4323
4324 mov sp, #STACK_BASE
4325 bl SP_INIT
4326 mov r0, #10
4327 bl DELAY9
4328 bl GET_MAC_ADDR
4329 bl GET_WHOLE_NVRAM
4330 ldr r0, =MRBASE
4331 ldr r1, =MAC_ADDRESS_MIB
4332 strh r1, [r0, #MR2]
4333 ldr r1, =NVRAM_IMAGE
4334 strh r1, [r0, #MR4]
4335 mov r1, #MAC_BOOT_FLAG
4336 strh r1, [r0, #MR3]
4337HALT2: b HALT2
4338.func Get_Whole_NVRAM, GET_WHOLE_NVRAM
4339GET_WHOLE_NVRAM:
4340 stmdb sp!, {lr}
4341 mov r2, #0 /* 0th bytes of NVRAM */
4342 mov r3, #NVRAM_LENGTH
4343 mov r1, #0 /* not used in routine */
4344 ldr r0, =NVRAM_IMAGE
4345 bl NVRAM_XFER
4346 ldmia sp!, {lr}
4347 bx lr
4348.endfunc
4d791aad 4349
1da177e4
LT		 4350.func Get_MAC_Addr, GET_MAC_ADDR
4351GET_MAC_ADDR:
4352 stmdb sp!, {lr}
4353 mov r2, #0x120 /* address of MAC Address within NVRAM */
4354 mov r3, #MAC_ADDRESS_LENGTH
4355 mov r1, #0 /* not used in routine */
4356 ldr r0, =MAC_ADDRESS_MIB
4357 bl NVRAM_XFER
4358 ldmia sp!, {lr}
4359 bx lr
4360.endfunc
4361.ltorg
4362.func Delay9, DELAY9
4363DELAY9:
4364 adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */
4d791aad 4365DELAYLOOP:
1da177e4
LT		 4366 beq DELAY9_done
4367 subs r0, r0, #1
4368 b DELAYLOOP
4d791aad 4369DELAY9_done:
1da177e4 4370 bx lr
4d791aad 4371.endfunc
1da177e4
LT		 4372
4373.func SP_Init, SP_INIT
4374SP_INIT:
4375 mov r1, #SP_SWRST
4376 ldr r0, =SP_BASE
4377 str r1, [r0, #SP_CR] /* reset the SPI */
4378 mov r1, #0
4379 str r1, [r0, #SP_CR] /* release SPI from reset state */
4380 mov r1, #SP_SPIEN
4381 str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/
4382 str r1, [r0, #SP_CR] /* enable the SPI */
4383
4384/* My guess would be this turns on the SPI clock */
4385 ldr r3, =SPI_CGEN_BASE
4386 ldr r1, [r3, #28]
4387 orr r1, r1, #0x2000
4388 str r1, [r3, #28]
4389
4390 ldr r1, =0x2000c01
4391 str r1, [r0, #SP_CSR0]
4392 ldr r1, =0x2000201
4393 str r1, [r0, #SP_CSR1]
4394 str r1, [r0, #SP_CSR2]
4395 str r1, [r0, #SP_CSR3]
4396 ldr r1, [r0, #SP_SR]
4397 ldr r0, [r0, #SP_RDR]
4398 bx lr
4399.endfunc
4d791aad 4400.func NVRAM_Init, NVRAM_INIT
1da177e4
LT		 4401NVRAM_INIT:
4402 ldr r1, =SP_BASE
4403 ldr r0, [r1, #SP_RDR]
4404 mov r0, #NVRAM_CMD_RDSR
4405 str r0, [r1, #SP_TDR]
4d791aad 4406SP_loop1:
1da177e4
LT		 4407 ldr r0, [r1, #SP_SR]
4408 tst r0, #SP_TDRE
4409 beq SP_loop1
4410
4411 mov r0, #SPI_8CLOCKS
4d791aad
CP		 4412 str r0, [r1, #SP_TDR]
4413SP_loop2:
1da177e4
LT		 4414 ldr r0, [r1, #SP_SR]
4415 tst r0, #SP_TDRE
4416 beq SP_loop2
4417
4418 ldr r0, [r1, #SP_RDR]
4d791aad 4419SP_loop3:
1da177e4
LT		 4420 ldr r0, [r1, #SP_SR]
4421 tst r0, #SP_RDRF
4422 beq SP_loop3
4423
4424 ldr r0, [r1, #SP_RDR]
4425 and r0, r0, #255
4426 bx lr
4427.endfunc
4d791aad 4428
1da177e4
LT		 4429.func NVRAM_Xfer, NVRAM_XFER
4430 /* r0 = dest address */
4431 /* r1 = not used */
4432 /* r2 = src address within NVRAM */
4433 /* r3 = length */
4434NVRAM_XFER:
4435 stmdb sp!, {r4, r5, lr}
4436 mov r5, r0 /* save r0 (dest address) */
4437 mov r4, r3 /* save r3 (length) */
4438 mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */
4439 and r0, r0, #8
4d791aad 4440 add r0, r0, #NVRAM_CMD_READ
1da177e4
LT		 4441 ldr r1, =NVRAM_SCRATCH
4442 strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */
4443 strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */
4d791aad 4444_local1:
1da177e4
LT		 4445 bl NVRAM_INIT
4446 tst r0, #NVRAM_SR_RDY
4447 bne _local1
4448 mov r0, #20
4449 bl DELAY9
4450 mov r2, r4 /* length */
4451 mov r1, r5 /* dest address */
4452 mov r0, #2 /* bytes to transfer in command */
4453 bl NVRAM_XFER2
4454 ldmia sp!, {r4, r5, lr}
4455 bx lr
4456.endfunc
4457
4458.func NVRAM_Xfer2, NVRAM_XFER2
4459NVRAM_XFER2:
4460 stmdb sp!, {r4, r5, r6, lr}
4461 ldr r4, =SP_BASE
4462 mov r3, #0
4463 cmp r0, #0
4464 bls _local2
4465 ldr r5, =NVRAM_SCRATCH
4d791aad 4466_local4:
1da177e4
LT		 4467 ldrb r6, [r5, r3]
4468 str r6, [r4, #SP_TDR]
4469_local3:
4470 ldr r6, [r4, #SP_SR]
4471 tst r6, #SP_TDRE
4472 beq _local3
4473 add r3, r3, #1
4474 cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */
4475 blo _local4
4476_local2:
4477 mov r3, #SPI_8CLOCKS
4478 str r3, [r4, #SP_TDR]
4479 ldr r0, [r4, #SP_RDR]
4d791aad 4480_local5:
1da177e4
LT		 4481 ldr r0, [r4, #SP_SR]
4482 tst r0, #SP_RDRF
4483 beq _local5
4484 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 */
4485 mov r0, #0
4486 cmp r2, #0 /* r2 is # of bytes to copy in */
4487 bls _local6
4d791aad 4488_local7:
1da177e4
LT		 4489 ldr r5, [r4, #SP_SR]
4490 tst r5, #SP_TDRE
4491 beq _local7
4492 str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */
4d791aad 4493_local8:
1da177e4
LT		 4494 ldr r5, [r4, #SP_SR]
4495 tst r5, #SP_RDRF
4496 beq _local8
4497 ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */
4498 strb r5, [r1], #1 /* postindexed */
4499 add r0, r0, #1
4500 cmp r0, r2
4501 blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */
4502_local6:
4503 mov r0, #200
4504 bl DELAY9
4505 ldmia sp!, {r4, r5, r6, lr}
4506 bx lr
4507#endif
Linux kernel - Deliverables
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