tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 *
16 * File: device.h
17 *
18 * Purpose: MAC Data structure
19 *
20 * Author: Tevin Chen
21 *
22 * Date: Mar 17, 1997
23 *
24 */
25
26#ifndef __DEVICE_H__
27#define __DEVICE_H__
28
29#include <linux/module.h>
30#include <linux/kernel.h>
31#include <linux/slab.h>
32#include <linux/delay.h>
33#include <linux/device.h>
34#include <linux/firmware.h>
35#include <linux/suspend.h>
36#include <linux/if_arp.h>
37#include <linux/wireless.h>
38#include <linux/timer.h>
39#include <linux/usb.h>
40#include <linux/crc32.h>
41#include <net/mac80211.h>
42
43#ifdef SIOCETHTOOL
44#define DEVICE_ETHTOOL_IOCTL_SUPPORT
45#include <linux/ethtool.h>
46#else
47#undef DEVICE_ETHTOOL_IOCTL_SUPPORT
48#endif
49
50#define RATE_1M 0
51#define RATE_2M 1
52#define RATE_5M 2
53#define RATE_11M 3
54#define RATE_6M 4
55#define RATE_9M 5
56#define RATE_12M 6
57#define RATE_18M 7
58#define RATE_24M 8
59#define RATE_36M 9
60#define RATE_48M 10
61#define RATE_54M 11
62#define RATE_AUTO 12
63
64#define MAX_RATE 12
65
66/*
67 * device specific
68 */
69
70#include "wcmd.h"
71#include "desc.h"
72#include "key.h"
73#include "card.h"
74
75#define VNT_USB_VENDOR_ID 0x160a
76#define VNT_USB_PRODUCT_ID 0x3184
77
78#define DEVICE_NAME "vt6656"
79#define DEVICE_FULL_DRV_NAM "VIA Networking Wireless LAN USB Driver"
80
81#define DEVICE_VERSION "mac80211"
82
83#define CONFIG_PATH "/etc/vntconfiguration.dat"
84
85#define MAX_UINTS 8
86#define OPTION_DEFAULT { [0 ... MAX_UINTS-1] = -1}
87
88#define DUPLICATE_RX_CACHE_LENGTH 5
89
90#define AUTO_FB_NONE 0
91#define AUTO_FB_0 1
92#define AUTO_FB_1 2
93
94#define FB_RATE0 0
95#define FB_RATE1 1
96
97/* Antenna Mode */
98#define ANT_A 0
99#define ANT_B 1
100#define ANT_DIVERSITY 2
101#define ANT_RXD_TXA 3
102#define ANT_RXD_TXB 4
103#define ANT_UNKNOWN 0xFF
104#define ANT_TXA 0
105#define ANT_TXB 1
106#define ANT_RXA 2
107#define ANT_RXB 3
108
109#define BB_VGA_LEVEL 4
110#define BB_VGA_CHANGE_THRESHOLD 3
111
112#define EEP_MAX_CONTEXT_SIZE 256
113
114/* Contents in the EEPROM */
115#define EEP_OFS_PAR 0x0
116#define EEP_OFS_ANTENNA 0x17
117#define EEP_OFS_RADIOCTL 0x18
118#define EEP_OFS_RFTYPE 0x1b
119#define EEP_OFS_MINCHANNEL 0x1c
120#define EEP_OFS_MAXCHANNEL 0x1d
121#define EEP_OFS_SIGNATURE 0x1e
122#define EEP_OFS_ZONETYPE 0x1f
123#define EEP_OFS_RFTABLE 0x20
124#define EEP_OFS_PWR_CCK 0x20
125#define EEP_OFS_SETPT_CCK 0x21
126#define EEP_OFS_PWR_OFDMG 0x23
127
128#define EEP_OFS_CALIB_TX_IQ 0x24
129#define EEP_OFS_CALIB_TX_DC 0x25
130#define EEP_OFS_CALIB_RX_IQ 0x26
131
132#define EEP_OFS_MAJOR_VER 0x2e
133#define EEP_OFS_MINOR_VER 0x2f
134
135#define EEP_OFS_CCK_PWR_TBL 0x30
136#define EEP_OFS_OFDM_PWR_TBL 0x40
137#define EEP_OFS_OFDMA_PWR_TBL 0x50
138
139/* Bits in EEP_OFS_ANTENNA */
140#define EEP_ANTENNA_MAIN 0x1
141#define EEP_ANTENNA_AUX 0x2
142#define EEP_ANTINV 0x4
143
144/* Bits in EEP_OFS_RADIOCTL */
145#define EEP_RADIOCTL_ENABLE 0x80
146
147/* control commands */
148#define MESSAGE_TYPE_READ 0x1
149#define MESSAGE_TYPE_WRITE 0x0
150#define MESSAGE_TYPE_LOCK_OR 0x2
151#define MESSAGE_TYPE_LOCK_AND 0x3
152#define MESSAGE_TYPE_WRITE_MASK 0x4
153#define MESSAGE_TYPE_CARDINIT 0x5
154#define MESSAGE_TYPE_INIT_RSP 0x6
155#define MESSAGE_TYPE_MACSHUTDOWN 0x7
156#define MESSAGE_TYPE_SETKEY 0x8
157#define MESSAGE_TYPE_CLRKEYENTRY 0x9
158#define MESSAGE_TYPE_WRITE_MISCFF 0xa
159#define MESSAGE_TYPE_SET_ANTMD 0xb
160#define MESSAGE_TYPE_SELECT_CHANNEL 0xc
161#define MESSAGE_TYPE_SET_TSFTBTT 0xd
162#define MESSAGE_TYPE_SET_SSTIFS 0xe
163#define MESSAGE_TYPE_CHANGE_BBTYPE 0xf
164#define MESSAGE_TYPE_DISABLE_PS 0x10
165#define MESSAGE_TYPE_WRITE_IFRF 0x11
166
167/* command read/write(index) */
168#define MESSAGE_REQUEST_MEM 0x1
169#define MESSAGE_REQUEST_BBREG 0x2
170#define MESSAGE_REQUEST_MACREG 0x3
171#define MESSAGE_REQUEST_EEPROM 0x4
172#define MESSAGE_REQUEST_TSF 0x5
173#define MESSAGE_REQUEST_TBTT 0x6
174#define MESSAGE_REQUEST_BBAGC 0x7
175#define MESSAGE_REQUEST_VERSION 0x8
176#define MESSAGE_REQUEST_RF_INIT 0x9
177#define MESSAGE_REQUEST_RF_INIT2 0xa
178#define MESSAGE_REQUEST_RF_CH0 0xb
179#define MESSAGE_REQUEST_RF_CH1 0xc
180#define MESSAGE_REQUEST_RF_CH2 0xd
181
182/* USB registers */
183#define USB_REG4 0x604
184
185#define DEVICE_INIT_COLD 0x0 /* cold init */
186#define DEVICE_INIT_RESET 0x1 /* reset init or Dx to D0 power remain */
187#define DEVICE_INIT_DXPL 0x2 /* Dx to D0 power lost init */
188
189/* Device init */
190struct vnt_cmd_card_init {
191 u8 init_class;
192 u8 exist_sw_net_addr;
193 u8 sw_net_addr[6];
194 u8 short_retry_limit;
195 u8 long_retry_limit;
196};
197
198struct vnt_rsp_card_init {
199 u8 status;
200 u8 net_addr[6];
201 u8 rf_type;
202 u8 min_channel;
203 u8 max_channel;
204};
205
206/* USB */
207
208/*
209 * Enum of context types for SendPacket
210 */
211enum {
212 CONTEXT_DATA_PACKET = 1,
213 CONTEXT_MGMT_PACKET,
214 CONTEXT_BEACON_PACKET
215};
216
217/* RCB (Receive Control Block) */
218struct vnt_rcb {
219 void *priv;
220 struct urb *urb;
221 struct sk_buff *skb;
222 int in_use;
223};
224
225/* used to track bulk out irps */
226struct vnt_usb_send_context {
227 void *priv;
228 struct sk_buff *skb;
229 struct urb *urb;
230 struct ieee80211_hdr *hdr;
231 unsigned int buf_len;
232 u32 frame_len;
233 u16 tx_hdr_size;
234 u16 tx_rate;
235 u8 type;
236 u8 pkt_no;
237 u8 pkt_type;
238 u8 need_ack;
239 u8 fb_option;
240 bool in_use;
241 unsigned char data[MAX_TOTAL_SIZE_WITH_ALL_HEADERS];
242};
243
244/*
245 * Structure to keep track of USB interrupt packets
246 */
247struct vnt_interrupt_buffer {
248 u8 *data_buf;
249 bool in_use;
250};
251
252/*++ NDIS related */
253
254enum {
255 STATUS_SUCCESS = 0,
256 STATUS_FAILURE,
257 STATUS_RESOURCES,
258 STATUS_PENDING,
259};
260
261/* flags for options */
262#define DEVICE_FLAGS_UNPLUG BIT(0)
263#define DEVICE_FLAGS_DISCONNECTED BIT(1)
264
265struct vnt_private {
266 /* mac80211 */
267 struct ieee80211_hw *hw;
268 struct ieee80211_vif *vif;
269 u8 mac_hw;
270 /* netdev */
271 struct usb_device *usb;
272
273 u64 tsf_time;
274 u8 rx_rate;
275
276 u32 rx_buf_sz;
277 int mc_list_count;
278
279 spinlock_t lock;
280 struct mutex usb_lock;
281
282 unsigned long flags;
283
284 /* USB */
285 struct urb *interrupt_urb;
286 u32 int_interval;
287
288 /* Variables to track resources for the BULK In Pipe */
289 struct vnt_rcb *rcb[CB_MAX_RX_DESC];
290 u32 num_rcb;
291
292 /* Variables to track resources for the BULK Out Pipe */
293 struct vnt_usb_send_context *tx_context[CB_MAX_TX_DESC];
294 u32 num_tx_context;
295
296 /* Variables to track resources for the Interrupt In Pipe */
297 struct vnt_interrupt_buffer int_buf;
298
299 /* Version control */
300 u16 firmware_version;
301 u8 local_id;
302 u8 rf_type;
303 u8 bb_rx_conf;
304
305 struct vnt_cmd_card_init init_command;
306 struct vnt_rsp_card_init init_response;
307 u8 current_net_addr[ETH_ALEN] __aligned(2);
308 u8 permanent_net_addr[ETH_ALEN] __aligned(2);
309
310 u8 exist_sw_net_addr;
311
312 u64 current_tsf;
313
314 /* 802.11 MAC specific */
315 u32 current_rssi;
316
317 /* Antenna Diversity */
318 int tx_rx_ant_inv;
319 u32 rx_antenna_sel;
320 u8 rx_antenna_mode;
321 u8 tx_antenna_mode;
322 u8 radio_ctl;
323
324 /* IFS & Cw */
325 u32 sifs; /* Current SIFS */
326 u32 difs; /* Current DIFS */
327 u32 eifs; /* Current EIFS */
328 u32 slot; /* Current SlotTime */
329
330 /* Rate */
331 u8 bb_type; /* 0: 11A, 1:11B, 2:11G */
332 u8 packet_type; /* 0:11a 1:11b 2:11gb 3:11ga */
333 u32 basic_rates;
334 u8 top_ofdm_basic_rate;
335 u8 top_cck_basic_rate;
336
337 u8 eeprom[EEP_MAX_CONTEXT_SIZE]; /*u32 alignment */
338
339 u8 preamble_type;
340
341 /* For RF Power table */
342 u8 cck_pwr;
343 u8 ofdm_pwr_g;
344 u8 ofdm_pwr_a;
345 u8 power;
346 u8 cck_pwr_tbl[14];
347 u8 ofdm_pwr_tbl[14];
348 u8 ofdm_a_pwr_tbl[42];
349
350 u16 current_rate;
351 u16 tx_rate_fb0;
352 u16 tx_rate_fb1;
353
354 u8 short_retry_limit;
355 u8 long_retry_limit;
356
357 enum nl80211_iftype op_mode;
358
359 int short_slot_time;
360
361 /* Power save */
362 u16 current_aid;
363
364 /* Beacon related */
365 u16 seq_counter;
366
367 enum vnt_cmd_state command_state;
368
369 enum vnt_cmd command;
370
371 /* 802.11 counter */
372
373 enum vnt_cmd cmd_queue[CMD_Q_SIZE];
374 u32 cmd_dequeue_idx;
375 u32 cmd_enqueue_idx;
376 u32 free_cmd_queue;
377 int cmd_running;
378
379 unsigned long key_entry_inuse;
380
381 u8 auto_fb_ctrl;
382
383 /* For Update BaseBand VGA Gain Offset */
384 u8 bb_vga[BB_VGA_LEVEL];
385
386 u8 bb_pre_ed_rssi;
387 u8 bb_pre_ed_index;
388
389 u16 wake_up_count;
390
391 /* command timer */
392 struct delayed_work run_command_work;
393
394 struct ieee80211_low_level_stats low_stats;
395};
396
397#define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) { \
398 if ((uVar) >= ((uModulo) - 1)) \
399 (uVar) = 0; \
400 else \
401 (uVar)++; \
402}
403
404int vnt_init(struct vnt_private *priv);
405
406#endif