Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /********************************************************************* |
| 2 | * |
| 3 | * Filename: netwave_cs.c |
| 4 | * Version: 0.4.1 |
| 5 | * Description: Netwave AirSurfer Wireless LAN PC Card driver |
| 6 | * Status: Experimental. |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 7 | * Authors: John Markus Bjørndalen <johnm@cs.uit.no> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * Dag Brattli <dagb@cs.uit.no> |
| 9 | * David Hinds <dahinds@users.sourceforge.net> |
| 10 | * Created at: A long time ago! |
| 11 | * Modified at: Mon Nov 10 11:54:37 1997 |
| 12 | * Modified by: Dag Brattli <dagb@cs.uit.no> |
| 13 | * |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 14 | * Copyright (c) 1997 University of Tromsø, Norway |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * |
| 16 | * Revision History: |
| 17 | * |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 18 | * 08-Nov-97 15:14:47 John Markus Bjørndalen <johnm@cs.uit.no> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | * - Fixed some bugs in netwave_rx and cleaned it up a bit. |
| 20 | * (One of the bugs would have destroyed packets when receiving |
| 21 | * multiple packets per interrupt). |
| 22 | * - Cleaned up parts of newave_hw_xmit. |
| 23 | * - A few general cleanups. |
| 24 | * 24-Oct-97 13:17:36 Dag Brattli <dagb@cs.uit.no> |
| 25 | * - Fixed netwave_rx receive function (got updated docs) |
| 26 | * Others: |
| 27 | * - Changed name from xircnw to netwave, take a look at |
| 28 | * http://www.netwave-wireless.com |
| 29 | * - Some reorganizing of the code |
| 30 | * - Removed possible race condition between interrupt handler and transmit |
| 31 | * function |
| 32 | * - Started to add wireless extensions, but still needs some coding |
| 33 | * - Added watchdog for better handling of transmission timeouts |
| 34 | * (hopefully this works better) |
| 35 | ********************************************************************/ |
| 36 | |
| 37 | /* To have statistics (just packets sent) define this */ |
| 38 | #undef NETWAVE_STATS |
| 39 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | #include <linux/module.h> |
| 41 | #include <linux/kernel.h> |
| 42 | #include <linux/init.h> |
| 43 | #include <linux/types.h> |
| 44 | #include <linux/fcntl.h> |
| 45 | #include <linux/interrupt.h> |
| 46 | #include <linux/ptrace.h> |
| 47 | #include <linux/ioport.h> |
| 48 | #include <linux/in.h> |
| 49 | #include <linux/slab.h> |
| 50 | #include <linux/string.h> |
| 51 | #include <linux/timer.h> |
| 52 | #include <linux/errno.h> |
| 53 | #include <linux/netdevice.h> |
| 54 | #include <linux/etherdevice.h> |
| 55 | #include <linux/skbuff.h> |
| 56 | #include <linux/bitops.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | #include <linux/wireless.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | #include <net/iw_handler.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #include <pcmcia/cs_types.h> |
| 61 | #include <pcmcia/cs.h> |
| 62 | #include <pcmcia/cistpl.h> |
| 63 | #include <pcmcia/cisreg.h> |
| 64 | #include <pcmcia/ds.h> |
| 65 | #include <pcmcia/mem_op.h> |
| 66 | |
| 67 | #include <asm/system.h> |
| 68 | #include <asm/io.h> |
| 69 | #include <asm/dma.h> |
| 70 | |
| 71 | #define NETWAVE_REGOFF 0x8000 |
| 72 | /* The Netwave IO registers, offsets to iobase */ |
| 73 | #define NETWAVE_REG_COR 0x0 |
| 74 | #define NETWAVE_REG_CCSR 0x2 |
| 75 | #define NETWAVE_REG_ASR 0x4 |
| 76 | #define NETWAVE_REG_IMR 0xa |
| 77 | #define NETWAVE_REG_PMR 0xc |
| 78 | #define NETWAVE_REG_IOLOW 0x6 |
| 79 | #define NETWAVE_REG_IOHI 0x7 |
| 80 | #define NETWAVE_REG_IOCONTROL 0x8 |
| 81 | #define NETWAVE_REG_DATA 0xf |
| 82 | /* The Netwave Extended IO registers, offsets to RamBase */ |
| 83 | #define NETWAVE_EREG_ASCC 0x114 |
| 84 | #define NETWAVE_EREG_RSER 0x120 |
| 85 | #define NETWAVE_EREG_RSERW 0x124 |
| 86 | #define NETWAVE_EREG_TSER 0x130 |
| 87 | #define NETWAVE_EREG_TSERW 0x134 |
| 88 | #define NETWAVE_EREG_CB 0x100 |
| 89 | #define NETWAVE_EREG_SPCQ 0x154 |
| 90 | #define NETWAVE_EREG_SPU 0x155 |
| 91 | #define NETWAVE_EREG_LIF 0x14e |
| 92 | #define NETWAVE_EREG_ISPLQ 0x156 |
| 93 | #define NETWAVE_EREG_HHC 0x158 |
| 94 | #define NETWAVE_EREG_NI 0x16e |
| 95 | #define NETWAVE_EREG_MHS 0x16b |
| 96 | #define NETWAVE_EREG_TDP 0x140 |
| 97 | #define NETWAVE_EREG_RDP 0x150 |
| 98 | #define NETWAVE_EREG_PA 0x160 |
| 99 | #define NETWAVE_EREG_EC 0x180 |
| 100 | #define NETWAVE_EREG_CRBP 0x17a |
| 101 | #define NETWAVE_EREG_ARW 0x166 |
| 102 | |
| 103 | /* |
| 104 | * Commands used in the extended command buffer |
| 105 | * NETWAVE_EREG_CB (0x100-0x10F) |
| 106 | */ |
| 107 | #define NETWAVE_CMD_NOP 0x00 |
| 108 | #define NETWAVE_CMD_SRC 0x01 |
| 109 | #define NETWAVE_CMD_STC 0x02 |
| 110 | #define NETWAVE_CMD_AMA 0x03 |
| 111 | #define NETWAVE_CMD_DMA 0x04 |
| 112 | #define NETWAVE_CMD_SAMA 0x05 |
| 113 | #define NETWAVE_CMD_ER 0x06 |
| 114 | #define NETWAVE_CMD_DR 0x07 |
| 115 | #define NETWAVE_CMD_TL 0x08 |
| 116 | #define NETWAVE_CMD_SRP 0x09 |
| 117 | #define NETWAVE_CMD_SSK 0x0a |
| 118 | #define NETWAVE_CMD_SMD 0x0b |
| 119 | #define NETWAVE_CMD_SAPD 0x0c |
| 120 | #define NETWAVE_CMD_SSS 0x11 |
| 121 | /* End of Command marker */ |
| 122 | #define NETWAVE_CMD_EOC 0x00 |
| 123 | |
| 124 | /* ASR register bits */ |
| 125 | #define NETWAVE_ASR_RXRDY 0x80 |
| 126 | #define NETWAVE_ASR_TXBA 0x01 |
| 127 | |
| 128 | #define TX_TIMEOUT ((32*HZ)/100) |
| 129 | |
| 130 | static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */ |
| 131 | static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */ |
| 132 | |
| 133 | static const unsigned int corConfIENA = 0x01; /* Interrupt enable */ |
| 134 | static const unsigned int corConfLVLREQ = 0x40; /* Keep high */ |
| 135 | |
| 136 | static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */ |
| 137 | static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/ |
| 138 | static const unsigned int rxConfPro = 0x10; /* Promiscuous */ |
| 139 | static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */ |
| 140 | static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */ |
| 141 | |
| 142 | static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */ |
| 143 | static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */ |
| 144 | static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */ |
| 145 | static const unsigned int txConfKey = 0x02; /* Scramble data packets */ |
| 146 | static const unsigned int txConfLoop = 0x01; /* Loopback mode */ |
| 147 | |
| 148 | /* |
| 149 | All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If |
| 150 | you do not define PCMCIA_DEBUG at all, all the debug code will be |
| 151 | left out. If you compile with PCMCIA_DEBUG=0, the debug code will |
| 152 | be present but disabled -- but it can then be enabled for specific |
| 153 | modules at load time with a 'pc_debug=#' option to insmod. |
| 154 | */ |
| 155 | |
| 156 | #ifdef PCMCIA_DEBUG |
| 157 | static int pc_debug = PCMCIA_DEBUG; |
| 158 | module_param(pc_debug, int, 0); |
| 159 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) |
| 160 | static char *version = |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 161 | "netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | #else |
| 163 | #define DEBUG(n, args...) |
| 164 | #endif |
| 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | /*====================================================================*/ |
| 167 | |
| 168 | /* Parameters that can be set with 'insmod' */ |
| 169 | |
| 170 | /* Choose the domain, default is 0x100 */ |
| 171 | static u_int domain = 0x100; |
| 172 | |
| 173 | /* Scramble key, range from 0x0 to 0xffff. |
| 174 | * 0x0 is no scrambling. |
| 175 | */ |
| 176 | static u_int scramble_key = 0x0; |
| 177 | |
| 178 | /* Shared memory speed, in ns. The documentation states that |
| 179 | * the card should not be read faster than every 400ns. |
| 180 | * This timing should be provided by the HBA. If it becomes a |
| 181 | * problem, try setting mem_speed to 400. |
| 182 | */ |
| 183 | static int mem_speed; |
| 184 | |
| 185 | module_param(domain, int, 0); |
| 186 | module_param(scramble_key, int, 0); |
| 187 | module_param(mem_speed, int, 0); |
| 188 | |
| 189 | /*====================================================================*/ |
| 190 | |
| 191 | /* PCMCIA (Card Services) related functions */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 192 | static void netwave_release(struct pcmcia_device *link); /* Card removal */ |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 193 | static int netwave_pcmcia_config(struct pcmcia_device *arg); /* Runs after card |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | insertion */ |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 195 | static void netwave_detach(struct pcmcia_device *p_dev); /* Destroy instance */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | |
| 197 | /* Hardware configuration */ |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 198 | static void netwave_doreset(unsigned int iobase, u_char __iomem *ramBase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | static void netwave_reset(struct net_device *dev); |
| 200 | |
| 201 | /* Misc device stuff */ |
| 202 | static int netwave_open(struct net_device *dev); /* Open the device */ |
| 203 | static int netwave_close(struct net_device *dev); /* Close the device */ |
| 204 | |
| 205 | /* Packet transmission and Packet reception */ |
| 206 | static int netwave_start_xmit( struct sk_buff *skb, struct net_device *dev); |
| 207 | static int netwave_rx( struct net_device *dev); |
| 208 | |
| 209 | /* Interrupt routines */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 210 | static irqreturn_t netwave_interrupt(int irq, void *dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | static void netwave_watchdog(struct net_device *); |
| 212 | |
| 213 | /* Statistics */ |
| 214 | static void update_stats(struct net_device *dev); |
| 215 | static struct net_device_stats *netwave_get_stats(struct net_device *dev); |
| 216 | |
| 217 | /* Wireless extensions */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | |
| 220 | static void set_multicast_list(struct net_device *dev); |
| 221 | |
| 222 | /* |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 223 | A struct pcmcia_device structure has fields for most things that are needed |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | to keep track of a socket, but there will usually be some device |
| 225 | specific information that also needs to be kept track of. The |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 226 | 'priv' pointer in a struct pcmcia_device structure can be used to point to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | a device-specific private data structure, like this. |
| 228 | |
| 229 | A driver needs to provide a dev_node_t structure for each device |
| 230 | on a card. In some cases, there is only one device per card (for |
| 231 | example, ethernet cards, modems). In other cases, there may be |
| 232 | many actual or logical devices (SCSI adapters, memory cards with |
| 233 | multiple partitions). The dev_node_t structures need to be kept |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 234 | in a linked list starting at the 'dev' field of a struct pcmcia_device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | structure. We allocate them in the card's private data structure, |
| 236 | because they generally can't be allocated dynamically. |
| 237 | */ |
| 238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | static const struct iw_handler_def netwave_handler_def; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
| 241 | #define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */ |
| 242 | |
| 243 | #define MAX_ESA 10 |
| 244 | |
| 245 | typedef struct net_addr { |
| 246 | u_char addr48[6]; |
| 247 | } net_addr; |
| 248 | |
| 249 | struct site_survey { |
| 250 | u_short length; |
| 251 | u_char struct_revision; |
| 252 | u_char roaming_state; |
| 253 | |
| 254 | u_char sp_existsFlag; |
| 255 | u_char sp_link_quality; |
| 256 | u_char sp_max_link_quality; |
| 257 | u_char linkQualityGoodFairBoundary; |
| 258 | u_char linkQualityFairPoorBoundary; |
| 259 | u_char sp_utilization; |
| 260 | u_char sp_goodness; |
| 261 | u_char sp_hotheadcount; |
| 262 | u_char roaming_condition; |
| 263 | |
| 264 | net_addr sp; |
| 265 | u_char numAPs; |
| 266 | net_addr nearByAccessPoints[MAX_ESA]; |
| 267 | }; |
| 268 | |
| 269 | typedef struct netwave_private { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 270 | struct pcmcia_device *p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | spinlock_t spinlock; /* Serialize access to the hardware (SMP) */ |
| 272 | dev_node_t node; |
| 273 | u_char __iomem *ramBase; |
| 274 | int timeoutCounter; |
| 275 | int lastExec; |
| 276 | struct timer_list watchdog; /* To avoid blocking state */ |
| 277 | struct site_survey nss; |
| 278 | struct net_device_stats stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | struct iw_statistics iw_stats; /* Wireless stats */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | } netwave_private; |
| 281 | |
| 282 | #ifdef NETWAVE_STATS |
| 283 | static struct net_device_stats *netwave_get_stats(struct net_device *dev); |
| 284 | #endif |
| 285 | |
| 286 | /* |
| 287 | * The Netwave card is little-endian, so won't work for big endian |
| 288 | * systems. |
| 289 | */ |
| 290 | static inline unsigned short get_uint16(u_char __iomem *staddr) |
| 291 | { |
| 292 | return readw(staddr); /* Return only 16 bits */ |
| 293 | } |
| 294 | |
| 295 | static inline short get_int16(u_char __iomem * staddr) |
| 296 | { |
| 297 | return readw(staddr); |
| 298 | } |
| 299 | |
| 300 | /* |
| 301 | * Wait until the WOC (Write Operation Complete) bit in the |
| 302 | * ASR (Adapter Status Register) is asserted. |
| 303 | * This should have aborted if it takes too long time. |
| 304 | */ |
| 305 | static inline void wait_WOC(unsigned int iobase) |
| 306 | { |
| 307 | /* Spin lock */ |
| 308 | while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ; |
| 309 | } |
| 310 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase, |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 312 | unsigned int iobase) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | u_short resultBuffer; |
| 314 | |
| 315 | /* if time since last snapshot is > 1 sec. (100 jiffies?) then take |
| 316 | * new snapshot, else return cached data. This is the recommended rate. |
| 317 | */ |
| 318 | if ( jiffies - priv->lastExec > 100) { |
| 319 | /* Take site survey snapshot */ |
| 320 | /*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies - |
| 321 | priv->lastExec); */ |
| 322 | wait_WOC(iobase); |
| 323 | writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0); |
| 324 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 325 | wait_WOC(iobase); |
| 326 | |
| 327 | /* Get result and copy to cach */ |
| 328 | resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP); |
| 329 | copy_from_pc( &priv->nss, ramBase+resultBuffer, |
| 330 | sizeof(struct site_survey)); |
| 331 | } |
| 332 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | /* |
| 335 | * Function netwave_get_wireless_stats (dev) |
| 336 | * |
| 337 | * Wireless extensions statistics |
| 338 | * |
| 339 | */ |
| 340 | static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev) |
| 341 | { |
| 342 | unsigned long flags; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 343 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | netwave_private *priv = netdev_priv(dev); |
| 345 | u_char __iomem *ramBase = priv->ramBase; |
| 346 | struct iw_statistics* wstats; |
| 347 | |
| 348 | wstats = &priv->iw_stats; |
| 349 | |
| 350 | spin_lock_irqsave(&priv->spinlock, flags); |
| 351 | |
| 352 | netwave_snapshot( priv, ramBase, iobase); |
| 353 | |
| 354 | wstats->status = priv->nss.roaming_state; |
| 355 | wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ); |
| 356 | wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ); |
| 357 | wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f; |
| 358 | wstats->discard.nwid = 0L; |
| 359 | wstats->discard.code = 0L; |
| 360 | wstats->discard.misc = 0L; |
| 361 | |
| 362 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 363 | |
| 364 | return &priv->iw_stats; |
| 365 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | |
| 367 | /* |
| 368 | * Function netwave_attach (void) |
| 369 | * |
| 370 | * Creates an "instance" of the driver, allocating local data |
| 371 | * structures for one device. The device is registered with Card |
| 372 | * Services. |
| 373 | * |
| 374 | * The dev_link structure is initialized, but we don't actually |
| 375 | * configure the card at this point -- we wait until we receive a |
| 376 | * card insertion event. |
| 377 | */ |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 378 | static int netwave_probe(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | struct net_device *dev; |
| 381 | netwave_private *priv; |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | DEBUG(0, "netwave_attach()\n"); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 384 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 385 | /* Initialize the struct pcmcia_device structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | dev = alloc_etherdev(sizeof(netwave_private)); |
| 387 | if (!dev) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 388 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | priv = netdev_priv(dev); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 390 | priv->p_dev = link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | link->priv = dev; |
| 392 | |
| 393 | /* The io structure describes IO port mapping */ |
| 394 | link->io.NumPorts1 = 16; |
| 395 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| 396 | /* link->io.NumPorts2 = 16; |
| 397 | link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */ |
| 398 | link->io.IOAddrLines = 5; |
| 399 | |
| 400 | /* Interrupt setup */ |
| 401 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| 402 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 403 | link->irq.Handler = &netwave_interrupt; |
| 404 | |
| 405 | /* General socket configuration */ |
| 406 | link->conf.Attributes = CONF_ENABLE_IRQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 408 | link->conf.ConfigIndex = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | |
| 410 | /* Netwave private struct init. link/dev/node already taken care of, |
| 411 | * other stuff zero'd - Jean II */ |
| 412 | spin_lock_init(&priv->spinlock); |
| 413 | |
| 414 | /* Netwave specific entries in the device structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | dev->hard_start_xmit = &netwave_start_xmit; |
| 416 | dev->get_stats = &netwave_get_stats; |
| 417 | dev->set_multicast_list = &set_multicast_list; |
| 418 | /* wireless extensions */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | dev->wireless_handlers = (struct iw_handler_def *)&netwave_handler_def; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | |
| 421 | dev->tx_timeout = &netwave_watchdog; |
| 422 | dev->watchdog_timeo = TX_TIMEOUT; |
| 423 | |
| 424 | dev->open = &netwave_open; |
| 425 | dev->stop = &netwave_close; |
| 426 | link->irq.Instance = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 428 | return netwave_pcmcia_config( link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | } /* netwave_attach */ |
| 430 | |
| 431 | /* |
| 432 | * Function netwave_detach (link) |
| 433 | * |
| 434 | * This deletes a driver "instance". The device is de-registered |
| 435 | * with Card Services. If it has been released, all local data |
| 436 | * structures are freed. Otherwise, the structures will be freed |
| 437 | * when the device is released. |
| 438 | */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 439 | static void netwave_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | { |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 441 | struct net_device *dev = link->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 443 | DEBUG(0, "netwave_detach(0x%p)\n", link); |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 444 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 445 | netwave_release(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 447 | if (link->dev_node) |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 448 | unregister_netdev(dev); |
| 449 | |
| 450 | free_netdev(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | } /* netwave_detach */ |
| 452 | |
| 453 | /* |
| 454 | * Wireless Handler : get protocol name |
| 455 | */ |
| 456 | static int netwave_get_name(struct net_device *dev, |
| 457 | struct iw_request_info *info, |
| 458 | union iwreq_data *wrqu, |
| 459 | char *extra) |
| 460 | { |
| 461 | strcpy(wrqu->name, "Netwave"); |
| 462 | return 0; |
| 463 | } |
| 464 | |
| 465 | /* |
| 466 | * Wireless Handler : set Network ID |
| 467 | */ |
| 468 | static int netwave_set_nwid(struct net_device *dev, |
| 469 | struct iw_request_info *info, |
| 470 | union iwreq_data *wrqu, |
| 471 | char *extra) |
| 472 | { |
| 473 | unsigned long flags; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 474 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | netwave_private *priv = netdev_priv(dev); |
| 476 | u_char __iomem *ramBase = priv->ramBase; |
| 477 | |
| 478 | /* Disable interrupts & save flags */ |
| 479 | spin_lock_irqsave(&priv->spinlock, flags); |
| 480 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | if(!wrqu->nwid.disabled) { |
| 482 | domain = wrqu->nwid.value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | printk( KERN_DEBUG "Setting domain to 0x%x%02x\n", |
| 484 | (domain >> 8) & 0x01, domain & 0xff); |
| 485 | wait_WOC(iobase); |
| 486 | writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0); |
| 487 | writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 488 | writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2); |
| 489 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 490 | } |
| 491 | |
| 492 | /* ReEnable interrupts & restore flags */ |
| 493 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 494 | |
| 495 | return 0; |
| 496 | } |
| 497 | |
| 498 | /* |
| 499 | * Wireless Handler : get Network ID |
| 500 | */ |
| 501 | static int netwave_get_nwid(struct net_device *dev, |
| 502 | struct iw_request_info *info, |
| 503 | union iwreq_data *wrqu, |
| 504 | char *extra) |
| 505 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | wrqu->nwid.value = domain; |
| 507 | wrqu->nwid.disabled = 0; |
| 508 | wrqu->nwid.fixed = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | return 0; |
| 510 | } |
| 511 | |
| 512 | /* |
| 513 | * Wireless Handler : set scramble key |
| 514 | */ |
| 515 | static int netwave_set_scramble(struct net_device *dev, |
| 516 | struct iw_request_info *info, |
| 517 | union iwreq_data *wrqu, |
| 518 | char *key) |
| 519 | { |
| 520 | unsigned long flags; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 521 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | netwave_private *priv = netdev_priv(dev); |
| 523 | u_char __iomem *ramBase = priv->ramBase; |
| 524 | |
| 525 | /* Disable interrupts & save flags */ |
| 526 | spin_lock_irqsave(&priv->spinlock, flags); |
| 527 | |
| 528 | scramble_key = (key[0] << 8) | key[1]; |
| 529 | wait_WOC(iobase); |
| 530 | writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0); |
| 531 | writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 532 | writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); |
| 533 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 534 | |
| 535 | /* ReEnable interrupts & restore flags */ |
| 536 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 537 | |
| 538 | return 0; |
| 539 | } |
| 540 | |
| 541 | /* |
| 542 | * Wireless Handler : get scramble key |
| 543 | */ |
| 544 | static int netwave_get_scramble(struct net_device *dev, |
| 545 | struct iw_request_info *info, |
| 546 | union iwreq_data *wrqu, |
| 547 | char *key) |
| 548 | { |
| 549 | key[1] = scramble_key & 0xff; |
| 550 | key[0] = (scramble_key>>8) & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | wrqu->encoding.flags = IW_ENCODE_ENABLED; |
| 552 | wrqu->encoding.length = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | return 0; |
| 554 | } |
| 555 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | /* |
| 557 | * Wireless Handler : get mode |
| 558 | */ |
| 559 | static int netwave_get_mode(struct net_device *dev, |
| 560 | struct iw_request_info *info, |
| 561 | union iwreq_data *wrqu, |
| 562 | char *extra) |
| 563 | { |
| 564 | if(domain & 0x100) |
| 565 | wrqu->mode = IW_MODE_INFRA; |
| 566 | else |
| 567 | wrqu->mode = IW_MODE_ADHOC; |
| 568 | |
| 569 | return 0; |
| 570 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | |
| 572 | /* |
| 573 | * Wireless Handler : get range info |
| 574 | */ |
| 575 | static int netwave_get_range(struct net_device *dev, |
| 576 | struct iw_request_info *info, |
| 577 | union iwreq_data *wrqu, |
| 578 | char *extra) |
| 579 | { |
| 580 | struct iw_range *range = (struct iw_range *) extra; |
| 581 | int ret = 0; |
| 582 | |
| 583 | /* Set the length (very important for backward compatibility) */ |
| 584 | wrqu->data.length = sizeof(struct iw_range); |
| 585 | |
| 586 | /* Set all the info we don't care or don't know about to zero */ |
| 587 | memset(range, 0, sizeof(struct iw_range)); |
| 588 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | /* Set the Wireless Extension versions */ |
| 590 | range->we_version_compiled = WIRELESS_EXT; |
| 591 | range->we_version_source = 9; /* Nothing for us in v10 and v11 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | |
| 593 | /* Set information in the range struct */ |
| 594 | range->throughput = 450 * 1000; /* don't argue on this ! */ |
| 595 | range->min_nwid = 0x0000; |
| 596 | range->max_nwid = 0x01FF; |
| 597 | |
| 598 | range->num_channels = range->num_frequency = 0; |
| 599 | |
| 600 | range->sensitivity = 0x3F; |
| 601 | range->max_qual.qual = 255; |
| 602 | range->max_qual.level = 255; |
| 603 | range->max_qual.noise = 0; |
| 604 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | range->num_bitrates = 1; |
| 606 | range->bitrate[0] = 1000000; /* 1 Mb/s */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | range->encoding_size[0] = 2; /* 16 bits scrambling */ |
| 609 | range->num_encoding_sizes = 1; |
| 610 | range->max_encoding_tokens = 1; /* Only one key possible */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | |
| 612 | return ret; |
| 613 | } |
| 614 | |
| 615 | /* |
| 616 | * Wireless Private Handler : get snapshot |
| 617 | */ |
| 618 | static int netwave_get_snap(struct net_device *dev, |
| 619 | struct iw_request_info *info, |
| 620 | union iwreq_data *wrqu, |
| 621 | char *extra) |
| 622 | { |
| 623 | unsigned long flags; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 624 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | netwave_private *priv = netdev_priv(dev); |
| 626 | u_char __iomem *ramBase = priv->ramBase; |
| 627 | |
| 628 | /* Disable interrupts & save flags */ |
| 629 | spin_lock_irqsave(&priv->spinlock, flags); |
| 630 | |
| 631 | /* Take snapshot of environment */ |
| 632 | netwave_snapshot( priv, ramBase, iobase); |
| 633 | wrqu->data.length = priv->nss.length; |
| 634 | memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey)); |
| 635 | |
| 636 | priv->lastExec = jiffies; |
| 637 | |
| 638 | /* ReEnable interrupts & restore flags */ |
| 639 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 640 | |
| 641 | return(0); |
| 642 | } |
| 643 | |
| 644 | /* |
| 645 | * Structures to export the Wireless Handlers |
| 646 | * This is the stuff that are treated the wireless extensions (iwconfig) |
| 647 | */ |
| 648 | |
| 649 | static const struct iw_priv_args netwave_private_args[] = { |
| 650 | /*{ cmd, set_args, get_args, name } */ |
| 651 | { SIOCGIPSNAP, 0, |
| 652 | IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey), |
| 653 | "getsitesurvey" }, |
| 654 | }; |
| 655 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | static const iw_handler netwave_handler[] = |
| 657 | { |
| 658 | NULL, /* SIOCSIWNAME */ |
| 659 | netwave_get_name, /* SIOCGIWNAME */ |
| 660 | netwave_set_nwid, /* SIOCSIWNWID */ |
| 661 | netwave_get_nwid, /* SIOCGIWNWID */ |
| 662 | NULL, /* SIOCSIWFREQ */ |
| 663 | NULL, /* SIOCGIWFREQ */ |
| 664 | NULL, /* SIOCSIWMODE */ |
| 665 | netwave_get_mode, /* SIOCGIWMODE */ |
| 666 | NULL, /* SIOCSIWSENS */ |
| 667 | NULL, /* SIOCGIWSENS */ |
| 668 | NULL, /* SIOCSIWRANGE */ |
| 669 | netwave_get_range, /* SIOCGIWRANGE */ |
| 670 | NULL, /* SIOCSIWPRIV */ |
| 671 | NULL, /* SIOCGIWPRIV */ |
| 672 | NULL, /* SIOCSIWSTATS */ |
| 673 | NULL, /* SIOCGIWSTATS */ |
| 674 | NULL, /* SIOCSIWSPY */ |
| 675 | NULL, /* SIOCGIWSPY */ |
| 676 | NULL, /* -- hole -- */ |
| 677 | NULL, /* -- hole -- */ |
| 678 | NULL, /* SIOCSIWAP */ |
| 679 | NULL, /* SIOCGIWAP */ |
| 680 | NULL, /* -- hole -- */ |
| 681 | NULL, /* SIOCGIWAPLIST */ |
| 682 | NULL, /* -- hole -- */ |
| 683 | NULL, /* -- hole -- */ |
| 684 | NULL, /* SIOCSIWESSID */ |
| 685 | NULL, /* SIOCGIWESSID */ |
| 686 | NULL, /* SIOCSIWNICKN */ |
| 687 | NULL, /* SIOCGIWNICKN */ |
| 688 | NULL, /* -- hole -- */ |
| 689 | NULL, /* -- hole -- */ |
| 690 | NULL, /* SIOCSIWRATE */ |
| 691 | NULL, /* SIOCGIWRATE */ |
| 692 | NULL, /* SIOCSIWRTS */ |
| 693 | NULL, /* SIOCGIWRTS */ |
| 694 | NULL, /* SIOCSIWFRAG */ |
| 695 | NULL, /* SIOCGIWFRAG */ |
| 696 | NULL, /* SIOCSIWTXPOW */ |
| 697 | NULL, /* SIOCGIWTXPOW */ |
| 698 | NULL, /* SIOCSIWRETRY */ |
| 699 | NULL, /* SIOCGIWRETRY */ |
| 700 | netwave_set_scramble, /* SIOCSIWENCODE */ |
| 701 | netwave_get_scramble, /* SIOCGIWENCODE */ |
| 702 | }; |
| 703 | |
| 704 | static const iw_handler netwave_private_handler[] = |
| 705 | { |
| 706 | NULL, /* SIOCIWFIRSTPRIV */ |
| 707 | netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */ |
| 708 | }; |
| 709 | |
| 710 | static const struct iw_handler_def netwave_handler_def = |
| 711 | { |
Denis Cheng | ff8ac60 | 2007-09-02 18:30:18 +0800 | [diff] [blame] | 712 | .num_standard = ARRAY_SIZE(netwave_handler), |
| 713 | .num_private = ARRAY_SIZE(netwave_private_handler), |
| 714 | .num_private_args = ARRAY_SIZE(netwave_private_args), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | .standard = (iw_handler *) netwave_handler, |
| 716 | .private = (iw_handler *) netwave_private_handler, |
| 717 | .private_args = (struct iw_priv_args *) netwave_private_args, |
Jean Tourrilhes | 62337dd | 2005-09-02 11:39:02 -0700 | [diff] [blame] | 718 | .get_wireless_stats = netwave_get_wireless_stats, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | |
| 721 | /* |
| 722 | * Function netwave_pcmcia_config (link) |
| 723 | * |
| 724 | * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION |
| 725 | * event is received, to configure the PCMCIA socket, and to make the |
| 726 | * device available to the system. |
| 727 | * |
| 728 | */ |
| 729 | |
| 730 | #define CS_CHECK(fn, ret) \ |
| 731 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| 732 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 733 | static int netwave_pcmcia_config(struct pcmcia_device *link) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | struct net_device *dev = link->priv; |
| 735 | netwave_private *priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | int i, j, last_ret, last_fn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | win_req_t req; |
| 738 | memreq_t mem; |
| 739 | u_char __iomem *ramBase = NULL; |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 740 | DECLARE_MAC_BUF(mac); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | |
| 742 | DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link); |
| 743 | |
| 744 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | * Try allocating IO ports. This tries a few fixed addresses. |
| 746 | * If you want, you can also read the card's config table to |
| 747 | * pick addresses -- see the serial driver for an example. |
| 748 | */ |
| 749 | for (i = j = 0x0; j < 0x400; j += 0x20) { |
| 750 | link->io.BasePort1 = j ^ 0x300; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 751 | i = pcmcia_request_io(link, &link->io); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | if (i == CS_SUCCESS) break; |
| 753 | } |
| 754 | if (i != CS_SUCCESS) { |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 755 | cs_error(link, RequestIO, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | goto failed; |
| 757 | } |
| 758 | |
| 759 | /* |
| 760 | * Now allocate an interrupt line. Note that this does not |
| 761 | * actually assign a handler to the interrupt. |
| 762 | */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 763 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | |
| 765 | /* |
| 766 | * This actually configures the PCMCIA socket -- setting up |
| 767 | * the I/O windows and the interrupt mapping. |
| 768 | */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 769 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | |
| 771 | /* |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 772 | * Allocate a 32K memory window. Note that the struct pcmcia_device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | * structure provides space for one window handle -- if your |
| 774 | * device needs several windows, you'll need to keep track of |
| 775 | * the handles in your private data structure, dev->priv. |
| 776 | */ |
| 777 | DEBUG(1, "Setting mem speed of %d\n", mem_speed); |
| 778 | |
| 779 | req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE; |
| 780 | req.Base = 0; req.Size = 0x8000; |
| 781 | req.AccessSpeed = mem_speed; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 782 | CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | mem.CardOffset = 0x20000; mem.Page = 0; |
| 784 | CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem)); |
| 785 | |
| 786 | /* Store base address of the common window frame */ |
| 787 | ramBase = ioremap(req.Base, 0x8000); |
| 788 | priv->ramBase = ramBase; |
| 789 | |
| 790 | dev->irq = link->irq.AssignedIRQ; |
| 791 | dev->base_addr = link->io.BasePort1; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 792 | SET_NETDEV_DEV(dev, &handle_to_dev(link)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
| 794 | if (register_netdev(dev) != 0) { |
| 795 | printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n"); |
| 796 | goto failed; |
| 797 | } |
| 798 | |
| 799 | strcpy(priv->node.dev_name, dev->name); |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 800 | link->dev_node = &priv->node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | |
| 802 | /* Reset card before reading physical address */ |
| 803 | netwave_doreset(dev->base_addr, ramBase); |
| 804 | |
| 805 | /* Read the ethernet address and fill in the Netwave registers. */ |
| 806 | for (i = 0; i < 6; i++) |
| 807 | dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i); |
| 808 | |
Joe Perches | 8376e7a | 2007-11-19 17:48:27 -0800 | [diff] [blame] | 809 | printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx, " |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 810 | "id %c%c, hw_addr %s\n", |
| 811 | dev->name, dev->base_addr, dev->irq, |
| 812 | (u_long) ramBase, |
| 813 | (int) readb(ramBase+NETWAVE_EREG_NI), |
| 814 | (int) readb(ramBase+NETWAVE_EREG_NI+1), |
| 815 | print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | |
| 817 | /* get revision words */ |
| 818 | printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n", |
| 819 | get_uint16(ramBase + NETWAVE_EREG_ARW), |
| 820 | get_uint16(ramBase + NETWAVE_EREG_ARW+2)); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 821 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | |
| 823 | cs_failed: |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 824 | cs_error(link, last_fn, last_ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | failed: |
| 826 | netwave_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 827 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | } /* netwave_pcmcia_config */ |
| 829 | |
| 830 | /* |
| 831 | * Function netwave_release (arg) |
| 832 | * |
| 833 | * After a card is removed, netwave_release() will unregister the net |
| 834 | * device, and release the PCMCIA configuration. If the device is |
| 835 | * still open, this will be postponed until it is closed. |
| 836 | */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 837 | static void netwave_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | { |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 839 | struct net_device *dev = link->priv; |
| 840 | netwave_private *priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 842 | DEBUG(0, "netwave_release(0x%p)\n", link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 844 | pcmcia_disable_device(link); |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 845 | if (link->win) |
| 846 | iounmap(priv->ramBase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | } |
| 848 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 849 | static int netwave_suspend(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 850 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 851 | struct net_device *dev = link->priv; |
| 852 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 853 | if (link->open) |
Dominik Brodowski | 8661bb5 | 2006-03-02 00:02:33 +0100 | [diff] [blame] | 854 | netif_device_detach(dev); |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 855 | |
| 856 | return 0; |
| 857 | } |
| 858 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 859 | static int netwave_resume(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 860 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 861 | struct net_device *dev = link->priv; |
| 862 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 863 | if (link->open) { |
Dominik Brodowski | 8661bb5 | 2006-03-02 00:02:33 +0100 | [diff] [blame] | 864 | netwave_reset(dev); |
| 865 | netif_device_attach(dev); |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 866 | } |
| 867 | |
| 868 | return 0; |
| 869 | } |
| 870 | |
| 871 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | * Function netwave_doreset (ioBase, ramBase) |
| 874 | * |
| 875 | * Proper hardware reset of the card. |
| 876 | */ |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 877 | static void netwave_doreset(unsigned int ioBase, u_char __iomem *ramBase) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | { |
| 879 | /* Reset card */ |
| 880 | wait_WOC(ioBase); |
| 881 | outb(0x80, ioBase + NETWAVE_REG_PMR); |
| 882 | writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */ |
| 883 | outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */ |
| 884 | } |
| 885 | |
| 886 | /* |
| 887 | * Function netwave_reset (dev) |
| 888 | * |
| 889 | * Reset and restore all of the netwave registers |
| 890 | */ |
| 891 | static void netwave_reset(struct net_device *dev) { |
| 892 | /* u_char state; */ |
| 893 | netwave_private *priv = netdev_priv(dev); |
| 894 | u_char __iomem *ramBase = priv->ramBase; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 895 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | |
| 897 | DEBUG(0, "netwave_reset: Done with hardware reset\n"); |
| 898 | |
| 899 | priv->timeoutCounter = 0; |
| 900 | |
| 901 | /* Reset card */ |
| 902 | netwave_doreset(iobase, ramBase); |
| 903 | printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n"); |
| 904 | |
| 905 | /* Write a NOP to check the card */ |
| 906 | wait_WOC(iobase); |
| 907 | writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0); |
| 908 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 909 | |
| 910 | /* Set receive conf */ |
| 911 | wait_WOC(iobase); |
| 912 | writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0); |
| 913 | writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1); |
| 914 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); |
| 915 | |
| 916 | /* Set transmit conf */ |
| 917 | wait_WOC(iobase); |
| 918 | writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0); |
| 919 | writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1); |
| 920 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); |
| 921 | |
| 922 | /* Now set the MU Domain */ |
| 923 | printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff); |
| 924 | wait_WOC(iobase); |
| 925 | writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0); |
| 926 | writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 927 | writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2); |
| 928 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 929 | |
| 930 | /* Set scramble key */ |
| 931 | printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key); |
| 932 | wait_WOC(iobase); |
| 933 | writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0); |
| 934 | writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 935 | writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); |
| 936 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 937 | |
| 938 | /* Enable interrupts, bit 4 high to keep unused |
| 939 | * source from interrupting us, bit 2 high to |
| 940 | * set interrupt enable, 567 to enable TxDN, |
| 941 | * RxErr and RxRdy |
| 942 | */ |
| 943 | wait_WOC(iobase); |
| 944 | outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR); |
| 945 | |
| 946 | /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36 |
| 947 | * waitWOC |
| 948 | * skriv 80 til d000:3688 |
| 949 | * sjekk om det ble 80 |
| 950 | */ |
| 951 | |
| 952 | /* Enable Receiver */ |
| 953 | wait_WOC(iobase); |
| 954 | writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0); |
| 955 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 956 | |
| 957 | /* Set the IENA bit in COR */ |
| 958 | wait_WOC(iobase); |
| 959 | outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR); |
| 960 | } |
| 961 | |
| 962 | /* |
| 963 | * Function netwave_hw_xmit (data, len, dev) |
| 964 | */ |
| 965 | static int netwave_hw_xmit(unsigned char* data, int len, |
| 966 | struct net_device* dev) { |
| 967 | unsigned long flags; |
| 968 | unsigned int TxFreeList, |
| 969 | curBuff, |
| 970 | MaxData, |
| 971 | DataOffset; |
| 972 | int tmpcount; |
| 973 | |
| 974 | netwave_private *priv = netdev_priv(dev); |
| 975 | u_char __iomem * ramBase = priv->ramBase; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 976 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 977 | |
| 978 | /* Disable interrupts & save flags */ |
| 979 | spin_lock_irqsave(&priv->spinlock, flags); |
| 980 | |
| 981 | /* Check if there are transmit buffers available */ |
| 982 | wait_WOC(iobase); |
| 983 | if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) { |
| 984 | /* No buffers available */ |
| 985 | printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n", |
| 986 | dev->name); |
| 987 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 988 | return 1; |
| 989 | } |
| 990 | |
| 991 | priv->stats.tx_bytes += len; |
| 992 | |
| 993 | DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n", |
| 994 | readb(ramBase + NETWAVE_EREG_SPCQ), |
| 995 | readb(ramBase + NETWAVE_EREG_SPU), |
| 996 | readb(ramBase + NETWAVE_EREG_LIF), |
| 997 | readb(ramBase + NETWAVE_EREG_ISPLQ)); |
| 998 | |
| 999 | /* Now try to insert it into the adapters free memory */ |
| 1000 | wait_WOC(iobase); |
| 1001 | TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP); |
| 1002 | MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2); |
| 1003 | DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4); |
| 1004 | |
| 1005 | DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n", |
| 1006 | TxFreeList, MaxData, DataOffset); |
| 1007 | |
| 1008 | /* Copy packet to the adapter fragment buffers */ |
| 1009 | curBuff = TxFreeList; |
| 1010 | tmpcount = 0; |
| 1011 | while (tmpcount < len) { |
| 1012 | int tmplen = len - tmpcount; |
| 1013 | copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount, |
| 1014 | (tmplen < MaxData) ? tmplen : MaxData); |
| 1015 | tmpcount += MaxData; |
| 1016 | |
| 1017 | /* Advance to next buffer */ |
| 1018 | curBuff = get_uint16(ramBase + curBuff); |
| 1019 | } |
| 1020 | |
| 1021 | /* Now issue transmit list */ |
| 1022 | wait_WOC(iobase); |
| 1023 | writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0); |
| 1024 | writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 1025 | writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); |
| 1026 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 1027 | |
| 1028 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 1029 | return 0; |
| 1030 | } |
| 1031 | |
| 1032 | static int netwave_start_xmit(struct sk_buff *skb, struct net_device *dev) { |
| 1033 | /* This flag indicate that the hardware can't perform a transmission. |
| 1034 | * Theoritically, NET3 check it before sending a packet to the driver, |
| 1035 | * but in fact it never do that and pool continuously. |
| 1036 | * As the watchdog will abort too long transmissions, we are quite safe... |
| 1037 | */ |
| 1038 | |
| 1039 | netif_stop_queue(dev); |
| 1040 | |
| 1041 | { |
| 1042 | short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; |
| 1043 | unsigned char* buf = skb->data; |
| 1044 | |
| 1045 | if (netwave_hw_xmit( buf, length, dev) == 1) { |
| 1046 | /* Some error, let's make them call us another time? */ |
| 1047 | netif_start_queue(dev); |
| 1048 | } |
| 1049 | dev->trans_start = jiffies; |
| 1050 | } |
| 1051 | dev_kfree_skb(skb); |
| 1052 | |
| 1053 | return 0; |
| 1054 | } /* netwave_start_xmit */ |
| 1055 | |
| 1056 | /* |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1057 | * Function netwave_interrupt (irq, dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | * |
| 1059 | * This function is the interrupt handler for the Netwave card. This |
| 1060 | * routine will be called whenever: |
| 1061 | * 1. A packet is received. |
| 1062 | * 2. A packet has successfully been transferred and the unit is |
| 1063 | * ready to transmit another packet. |
| 1064 | * 3. A command has completed execution. |
| 1065 | */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1066 | static irqreturn_t netwave_interrupt(int irq, void* dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1067 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 1068 | unsigned int iobase; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | u_char __iomem *ramBase; |
| 1070 | struct net_device *dev = (struct net_device *)dev_id; |
| 1071 | struct netwave_private *priv = netdev_priv(dev); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1072 | struct pcmcia_device *link = priv->p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | int i; |
| 1074 | |
| 1075 | if (!netif_device_present(dev)) |
| 1076 | return IRQ_NONE; |
| 1077 | |
| 1078 | iobase = dev->base_addr; |
| 1079 | ramBase = priv->ramBase; |
| 1080 | |
| 1081 | /* Now find what caused the interrupt, check while interrupts ready */ |
| 1082 | for (i = 0; i < 10; i++) { |
| 1083 | u_char status; |
| 1084 | |
| 1085 | wait_WOC(iobase); |
| 1086 | if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02)) |
| 1087 | break; /* None of the interrupt sources asserted (normal exit) */ |
| 1088 | |
| 1089 | status = inb(iobase + NETWAVE_REG_ASR); |
| 1090 | |
Dominik Brodowski | 9940ec3 | 2006-03-05 11:04:33 +0100 | [diff] [blame] | 1091 | if (!pcmcia_dev_present(link)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x " |
| 1093 | "from removed or suspended card!\n", status); |
| 1094 | break; |
| 1095 | } |
| 1096 | |
| 1097 | /* RxRdy */ |
| 1098 | if (status & 0x80) { |
| 1099 | netwave_rx(dev); |
| 1100 | /* wait_WOC(iobase); */ |
| 1101 | /* RxRdy cannot be reset directly by the host */ |
| 1102 | } |
| 1103 | /* RxErr */ |
| 1104 | if (status & 0x40) { |
| 1105 | u_char rser; |
| 1106 | |
| 1107 | rser = readb(ramBase + NETWAVE_EREG_RSER); |
| 1108 | |
| 1109 | if (rser & 0x04) { |
| 1110 | ++priv->stats.rx_dropped; |
| 1111 | ++priv->stats.rx_crc_errors; |
| 1112 | } |
| 1113 | if (rser & 0x02) |
| 1114 | ++priv->stats.rx_frame_errors; |
| 1115 | |
| 1116 | /* Clear the RxErr bit in RSER. RSER+4 is the |
| 1117 | * write part. Also clear the RxCRC (0x04) and |
| 1118 | * RxBig (0x02) bits if present */ |
| 1119 | wait_WOC(iobase); |
| 1120 | writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4); |
| 1121 | |
| 1122 | /* Write bit 6 high to ASCC to clear RxErr in ASR, |
| 1123 | * WOC must be set first! |
| 1124 | */ |
| 1125 | wait_WOC(iobase); |
| 1126 | writeb(0x40, ramBase + NETWAVE_EREG_ASCC); |
| 1127 | |
| 1128 | /* Remember to count up priv->stats on error packets */ |
| 1129 | ++priv->stats.rx_errors; |
| 1130 | } |
| 1131 | /* TxDN */ |
| 1132 | if (status & 0x20) { |
| 1133 | int txStatus; |
| 1134 | |
| 1135 | txStatus = readb(ramBase + NETWAVE_EREG_TSER); |
| 1136 | DEBUG(3, "Transmit done. TSER = %x id %x\n", |
| 1137 | txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1)); |
| 1138 | |
| 1139 | if (txStatus & 0x20) { |
| 1140 | /* Transmitting was okay, clear bits */ |
| 1141 | wait_WOC(iobase); |
| 1142 | writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4); |
| 1143 | ++priv->stats.tx_packets; |
| 1144 | } |
| 1145 | |
| 1146 | if (txStatus & 0xd0) { |
| 1147 | if (txStatus & 0x80) { |
| 1148 | ++priv->stats.collisions; /* Because of /proc/net/dev*/ |
| 1149 | /* ++priv->stats.tx_aborted_errors; */ |
| 1150 | /* printk("Collision. %ld\n", jiffies - dev->trans_start); */ |
| 1151 | } |
| 1152 | if (txStatus & 0x40) |
| 1153 | ++priv->stats.tx_carrier_errors; |
| 1154 | /* 0x80 TxGU Transmit giveup - nine times and no luck |
| 1155 | * 0x40 TxNOAP No access point. Discarded packet. |
| 1156 | * 0x10 TxErr Transmit error. Always set when |
| 1157 | * TxGU and TxNOAP is set. (Those are the only ones |
| 1158 | * to set TxErr). |
| 1159 | */ |
| 1160 | DEBUG(3, "netwave_interrupt: TxDN with error status %x\n", |
| 1161 | txStatus); |
| 1162 | |
| 1163 | /* Clear out TxGU, TxNOAP, TxErr and TxTrys */ |
| 1164 | wait_WOC(iobase); |
| 1165 | writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4); |
| 1166 | ++priv->stats.tx_errors; |
| 1167 | } |
| 1168 | DEBUG(3, "New status is TSER %x ASR %x\n", |
| 1169 | readb(ramBase + NETWAVE_EREG_TSER), |
| 1170 | inb(iobase + NETWAVE_REG_ASR)); |
| 1171 | |
| 1172 | netif_wake_queue(dev); |
| 1173 | } |
| 1174 | /* TxBA, this would trigger on all error packets received */ |
| 1175 | /* if (status & 0x01) { |
| 1176 | DEBUG(4, "Transmit buffers available, %x\n", status); |
| 1177 | } |
| 1178 | */ |
| 1179 | } |
| 1180 | /* Handled if we looped at least one time - Jean II */ |
| 1181 | return IRQ_RETVAL(i); |
| 1182 | } /* netwave_interrupt */ |
| 1183 | |
| 1184 | /* |
| 1185 | * Function netwave_watchdog (a) |
| 1186 | * |
| 1187 | * Watchdog : when we start a transmission, we set a timer in the |
| 1188 | * kernel. If the transmission complete, this timer is disabled. If |
| 1189 | * it expire, we reset the card. |
| 1190 | * |
| 1191 | */ |
| 1192 | static void netwave_watchdog(struct net_device *dev) { |
| 1193 | |
| 1194 | DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name); |
| 1195 | netwave_reset(dev); |
| 1196 | dev->trans_start = jiffies; |
| 1197 | netif_wake_queue(dev); |
| 1198 | } /* netwave_watchdog */ |
| 1199 | |
| 1200 | static struct net_device_stats *netwave_get_stats(struct net_device *dev) { |
| 1201 | netwave_private *priv = netdev_priv(dev); |
| 1202 | |
| 1203 | update_stats(dev); |
| 1204 | |
| 1205 | DEBUG(2, "netwave: SPCQ %x SPU %x LIF %x ISPLQ %x MHS %x rxtx %x" |
| 1206 | " %x tx %x %x %x %x\n", |
| 1207 | readb(priv->ramBase + NETWAVE_EREG_SPCQ), |
| 1208 | readb(priv->ramBase + NETWAVE_EREG_SPU), |
| 1209 | readb(priv->ramBase + NETWAVE_EREG_LIF), |
| 1210 | readb(priv->ramBase + NETWAVE_EREG_ISPLQ), |
| 1211 | readb(priv->ramBase + NETWAVE_EREG_MHS), |
| 1212 | readb(priv->ramBase + NETWAVE_EREG_EC + 0xe), |
| 1213 | readb(priv->ramBase + NETWAVE_EREG_EC + 0xf), |
| 1214 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x18), |
| 1215 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x19), |
| 1216 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x1a), |
| 1217 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x1b)); |
| 1218 | |
| 1219 | return &priv->stats; |
| 1220 | } |
| 1221 | |
| 1222 | static void update_stats(struct net_device *dev) { |
| 1223 | //unsigned long flags; |
| 1224 | /* netwave_private *priv = netdev_priv(dev); */ |
| 1225 | |
| 1226 | //spin_lock_irqsave(&priv->spinlock, flags); |
| 1227 | |
| 1228 | /* priv->stats.rx_packets = readb(priv->ramBase + 0x18e); |
| 1229 | priv->stats.tx_packets = readb(priv->ramBase + 0x18f); */ |
| 1230 | |
| 1231 | //spin_unlock_irqrestore(&priv->spinlock, flags); |
| 1232 | } |
| 1233 | |
| 1234 | static int netwave_rx(struct net_device *dev) |
| 1235 | { |
| 1236 | netwave_private *priv = netdev_priv(dev); |
| 1237 | u_char __iomem *ramBase = priv->ramBase; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 1238 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | u_char rxStatus; |
| 1240 | struct sk_buff *skb = NULL; |
| 1241 | unsigned int curBuffer, |
| 1242 | rcvList; |
| 1243 | int rcvLen; |
| 1244 | int tmpcount = 0; |
| 1245 | int dataCount, dataOffset; |
| 1246 | int i; |
| 1247 | u_char *ptr; |
| 1248 | |
| 1249 | DEBUG(3, "xinw_rx: Receiving ... \n"); |
| 1250 | |
| 1251 | /* Receive max 10 packets for now. */ |
| 1252 | for (i = 0; i < 10; i++) { |
| 1253 | /* Any packets? */ |
| 1254 | wait_WOC(iobase); |
| 1255 | rxStatus = readb(ramBase + NETWAVE_EREG_RSER); |
| 1256 | if ( !( rxStatus & 0x80)) /* No more packets */ |
| 1257 | break; |
| 1258 | |
| 1259 | /* Check if multicast/broadcast or other */ |
| 1260 | /* multicast = (rxStatus & 0x20); */ |
| 1261 | |
| 1262 | /* The receive list pointer and length of the packet */ |
| 1263 | wait_WOC(iobase); |
| 1264 | rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP); |
| 1265 | rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2); |
| 1266 | |
| 1267 | if (rcvLen < 0) { |
| 1268 | printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n", |
| 1269 | rcvLen); |
| 1270 | return 0; |
| 1271 | } |
| 1272 | |
| 1273 | skb = dev_alloc_skb(rcvLen+5); |
| 1274 | if (skb == NULL) { |
| 1275 | DEBUG(1, "netwave_rx: Could not allocate an sk_buff of " |
| 1276 | "length %d\n", rcvLen); |
| 1277 | ++priv->stats.rx_dropped; |
| 1278 | /* Tell the adapter to skip the packet */ |
| 1279 | wait_WOC(iobase); |
| 1280 | writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); |
| 1281 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 1282 | return 0; |
| 1283 | } |
| 1284 | |
| 1285 | skb_reserve( skb, 2); /* Align IP on 16 byte */ |
| 1286 | skb_put( skb, rcvLen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1287 | |
| 1288 | /* Copy packet fragments to the skb data area */ |
| 1289 | ptr = (u_char*) skb->data; |
| 1290 | curBuffer = rcvList; |
| 1291 | tmpcount = 0; |
| 1292 | while ( tmpcount < rcvLen) { |
| 1293 | /* Get length and offset of current buffer */ |
| 1294 | dataCount = get_uint16( ramBase+curBuffer+2); |
| 1295 | dataOffset = get_uint16( ramBase+curBuffer+4); |
| 1296 | |
| 1297 | copy_from_pc( ptr + tmpcount, |
| 1298 | ramBase+curBuffer+dataOffset, dataCount); |
| 1299 | |
| 1300 | tmpcount += dataCount; |
| 1301 | |
| 1302 | /* Point to next buffer */ |
| 1303 | curBuffer = get_uint16(ramBase + curBuffer); |
| 1304 | } |
| 1305 | |
| 1306 | skb->protocol = eth_type_trans(skb,dev); |
| 1307 | /* Queue packet for network layer */ |
| 1308 | netif_rx(skb); |
| 1309 | |
| 1310 | dev->last_rx = jiffies; |
| 1311 | priv->stats.rx_packets++; |
| 1312 | priv->stats.rx_bytes += rcvLen; |
| 1313 | |
| 1314 | /* Got the packet, tell the adapter to skip it */ |
| 1315 | wait_WOC(iobase); |
| 1316 | writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); |
| 1317 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 1318 | DEBUG(3, "Packet reception ok\n"); |
| 1319 | } |
| 1320 | return 0; |
| 1321 | } |
| 1322 | |
| 1323 | static int netwave_open(struct net_device *dev) { |
| 1324 | netwave_private *priv = netdev_priv(dev); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1325 | struct pcmcia_device *link = priv->p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | |
| 1327 | DEBUG(1, "netwave_open: starting.\n"); |
| 1328 | |
Dominik Brodowski | 9940ec3 | 2006-03-05 11:04:33 +0100 | [diff] [blame] | 1329 | if (!pcmcia_dev_present(link)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1330 | return -ENODEV; |
| 1331 | |
| 1332 | link->open++; |
| 1333 | |
| 1334 | netif_start_queue(dev); |
| 1335 | netwave_reset(dev); |
| 1336 | |
| 1337 | return 0; |
| 1338 | } |
| 1339 | |
| 1340 | static int netwave_close(struct net_device *dev) { |
| 1341 | netwave_private *priv = netdev_priv(dev); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1342 | struct pcmcia_device *link = priv->p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1343 | |
| 1344 | DEBUG(1, "netwave_close: finishing.\n"); |
| 1345 | |
| 1346 | link->open--; |
| 1347 | netif_stop_queue(dev); |
| 1348 | |
| 1349 | return 0; |
| 1350 | } |
| 1351 | |
Dominik Brodowski | 5d402e9 | 2005-06-27 16:28:23 -0700 | [diff] [blame] | 1352 | static struct pcmcia_device_id netwave_ids[] = { |
| 1353 | PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28), |
| 1354 | PCMCIA_DEVICE_NULL, |
| 1355 | }; |
| 1356 | MODULE_DEVICE_TABLE(pcmcia, netwave_ids); |
| 1357 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1358 | static struct pcmcia_driver netwave_driver = { |
| 1359 | .owner = THIS_MODULE, |
| 1360 | .drv = { |
| 1361 | .name = "netwave_cs", |
| 1362 | }, |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1363 | .probe = netwave_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1364 | .remove = netwave_detach, |
Dominik Brodowski | 5d402e9 | 2005-06-27 16:28:23 -0700 | [diff] [blame] | 1365 | .id_table = netwave_ids, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1366 | .suspend = netwave_suspend, |
| 1367 | .resume = netwave_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | }; |
| 1369 | |
| 1370 | static int __init init_netwave_cs(void) |
| 1371 | { |
| 1372 | return pcmcia_register_driver(&netwave_driver); |
| 1373 | } |
| 1374 | |
| 1375 | static void __exit exit_netwave_cs(void) |
| 1376 | { |
| 1377 | pcmcia_unregister_driver(&netwave_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1378 | } |
| 1379 | |
| 1380 | module_init(init_netwave_cs); |
| 1381 | module_exit(exit_netwave_cs); |
| 1382 | |
| 1383 | /* Set or clear the multicast filter for this adaptor. |
| 1384 | num_addrs == -1 Promiscuous mode, receive all packets |
| 1385 | num_addrs == 0 Normal mode, clear multicast list |
| 1386 | num_addrs > 0 Multicast mode, receive normal and MC packets, and do |
| 1387 | best-effort filtering. |
| 1388 | */ |
| 1389 | static void set_multicast_list(struct net_device *dev) |
| 1390 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame^] | 1391 | unsigned int iobase = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1392 | netwave_private *priv = netdev_priv(dev); |
| 1393 | u_char __iomem * ramBase = priv->ramBase; |
| 1394 | u_char rcvMode = 0; |
| 1395 | |
| 1396 | #ifdef PCMCIA_DEBUG |
| 1397 | if (pc_debug > 2) { |
| 1398 | static int old; |
| 1399 | if (old != dev->mc_count) { |
| 1400 | old = dev->mc_count; |
| 1401 | DEBUG(0, "%s: setting Rx mode to %d addresses.\n", |
| 1402 | dev->name, dev->mc_count); |
| 1403 | } |
| 1404 | } |
| 1405 | #endif |
| 1406 | |
| 1407 | if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) { |
| 1408 | /* Multicast Mode */ |
| 1409 | rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast; |
| 1410 | } else if (dev->flags & IFF_PROMISC) { |
| 1411 | /* Promiscous mode */ |
| 1412 | rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast; |
| 1413 | } else { |
| 1414 | /* Normal mode */ |
| 1415 | rcvMode = rxConfRxEna + rxConfBcast; |
| 1416 | } |
| 1417 | |
| 1418 | /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/ |
| 1419 | /* Now set receive mode */ |
| 1420 | wait_WOC(iobase); |
| 1421 | writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0); |
| 1422 | writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1); |
| 1423 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); |
| 1424 | } |
| 1425 | MODULE_LICENSE("GPL"); |