Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*====================================================================== |
| 2 | |
| 3 | A PCMCIA ethernet driver for SMC91c92-based cards. |
| 4 | |
| 5 | This driver supports Megahertz PCMCIA ethernet cards; and |
| 6 | Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem |
| 7 | multifunction cards. |
| 8 | |
| 9 | Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net |
| 10 | |
| 11 | smc91c92_cs.c 1.122 2002/10/25 06:26:39 |
| 12 | |
| 13 | This driver contains code written by Donald Becker |
| 14 | (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au), |
| 15 | David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman |
| 16 | (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of |
| 17 | Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've |
| 18 | incorporated some parts of his driver here. I (Dave) wrote most |
| 19 | of the PCMCIA glue code, and the Ositech support code. Kelly |
| 20 | Stephens (kstephen@holli.com) added support for the Motorola |
| 21 | Mariner, with help from Allen Brost. |
| 22 | |
| 23 | This software may be used and distributed according to the terms of |
| 24 | the GNU General Public License, incorporated herein by reference. |
| 25 | |
| 26 | ======================================================================*/ |
| 27 | |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/string.h> |
| 33 | #include <linux/timer.h> |
| 34 | #include <linux/interrupt.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/crc32.h> |
| 37 | #include <linux/netdevice.h> |
| 38 | #include <linux/etherdevice.h> |
| 39 | #include <linux/skbuff.h> |
| 40 | #include <linux/if_arp.h> |
| 41 | #include <linux/ioport.h> |
| 42 | #include <linux/ethtool.h> |
| 43 | #include <linux/mii.h> |
| 44 | |
| 45 | #include <pcmcia/version.h> |
| 46 | #include <pcmcia/cs_types.h> |
| 47 | #include <pcmcia/cs.h> |
| 48 | #include <pcmcia/cistpl.h> |
| 49 | #include <pcmcia/cisreg.h> |
| 50 | #include <pcmcia/ciscode.h> |
| 51 | #include <pcmcia/ds.h> |
| 52 | |
| 53 | #include <asm/io.h> |
| 54 | #include <asm/system.h> |
| 55 | #include <asm/uaccess.h> |
| 56 | |
| 57 | /* Ositech Seven of Diamonds firmware */ |
| 58 | #include "ositech.h" |
| 59 | |
| 60 | /*====================================================================*/ |
| 61 | |
| 62 | static char *if_names[] = { "auto", "10baseT", "10base2"}; |
| 63 | |
| 64 | /* Module parameters */ |
| 65 | |
| 66 | MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver"); |
| 67 | MODULE_LICENSE("GPL"); |
| 68 | |
| 69 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) |
| 70 | |
| 71 | /* |
| 72 | Transceiver/media type. |
| 73 | 0 = auto |
| 74 | 1 = 10baseT (and autoselect if #define AUTOSELECT), |
| 75 | 2 = AUI/10base2, |
| 76 | */ |
| 77 | INT_MODULE_PARM(if_port, 0); |
| 78 | |
| 79 | #ifdef PCMCIA_DEBUG |
| 80 | INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG); |
| 81 | static const char *version = |
| 82 | "smc91c92_cs.c 0.09 1996/8/4 Donald Becker, becker@scyld.com.\n"; |
| 83 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) |
| 84 | #else |
| 85 | #define DEBUG(n, args...) |
| 86 | #endif |
| 87 | |
| 88 | #define DRV_NAME "smc91c92_cs" |
| 89 | #define DRV_VERSION "1.122" |
| 90 | |
| 91 | /*====================================================================*/ |
| 92 | |
| 93 | /* Operational parameter that usually are not changed. */ |
| 94 | |
| 95 | /* Time in jiffies before concluding Tx hung */ |
| 96 | #define TX_TIMEOUT ((400*HZ)/1000) |
| 97 | |
| 98 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
| 99 | #define INTR_WORK 4 |
| 100 | |
| 101 | /* Times to check the check the chip before concluding that it doesn't |
| 102 | currently have room for another Tx packet. */ |
| 103 | #define MEMORY_WAIT_TIME 8 |
| 104 | |
| 105 | static dev_info_t dev_info = "smc91c92_cs"; |
| 106 | |
| 107 | static dev_link_t *dev_list; |
| 108 | |
| 109 | struct smc_private { |
| 110 | dev_link_t link; |
| 111 | spinlock_t lock; |
| 112 | u_short manfid; |
| 113 | u_short cardid; |
| 114 | struct net_device_stats stats; |
| 115 | dev_node_t node; |
| 116 | struct sk_buff *saved_skb; |
| 117 | int packets_waiting; |
| 118 | void __iomem *base; |
| 119 | u_short cfg; |
| 120 | struct timer_list media; |
| 121 | int watchdog, tx_err; |
| 122 | u_short media_status; |
| 123 | u_short fast_poll; |
| 124 | u_short link_status; |
| 125 | struct mii_if_info mii_if; |
| 126 | int duplex; |
| 127 | int rx_ovrn; |
| 128 | }; |
| 129 | |
| 130 | /* Special definitions for Megahertz multifunction cards */ |
| 131 | #define MEGAHERTZ_ISR 0x0380 |
| 132 | |
| 133 | /* Special function registers for Motorola Mariner */ |
| 134 | #define MOT_LAN 0x0000 |
| 135 | #define MOT_UART 0x0020 |
| 136 | #define MOT_EEPROM 0x20 |
| 137 | |
| 138 | #define MOT_NORMAL \ |
| 139 | (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA) |
| 140 | |
| 141 | /* Special function registers for Ositech cards */ |
| 142 | #define OSITECH_AUI_CTL 0x0c |
| 143 | #define OSITECH_PWRDOWN 0x0d |
| 144 | #define OSITECH_RESET 0x0e |
| 145 | #define OSITECH_ISR 0x0f |
| 146 | #define OSITECH_AUI_PWR 0x0c |
| 147 | #define OSITECH_RESET_ISR 0x0e |
| 148 | |
| 149 | #define OSI_AUI_PWR 0x40 |
| 150 | #define OSI_LAN_PWRDOWN 0x02 |
| 151 | #define OSI_MODEM_PWRDOWN 0x01 |
| 152 | #define OSI_LAN_RESET 0x02 |
| 153 | #define OSI_MODEM_RESET 0x01 |
| 154 | |
| 155 | /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */ |
| 156 | #define BANK_SELECT 14 /* Window select register. */ |
| 157 | #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); } |
| 158 | |
| 159 | /* Bank 0 registers. */ |
| 160 | #define TCR 0 /* transmit control register */ |
| 161 | #define TCR_CLEAR 0 /* do NOTHING */ |
| 162 | #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */ |
| 163 | #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */ |
| 164 | #define TCR_MONCSN 0x0400 /* Monitor Carrier. */ |
| 165 | #define TCR_FDUPLX 0x0800 /* Full duplex mode. */ |
| 166 | #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN |
| 167 | |
| 168 | #define EPH 2 /* Ethernet Protocol Handler report. */ |
| 169 | #define EPH_TX_SUC 0x0001 |
| 170 | #define EPH_SNGLCOL 0x0002 |
| 171 | #define EPH_MULCOL 0x0004 |
| 172 | #define EPH_LTX_MULT 0x0008 |
| 173 | #define EPH_16COL 0x0010 |
| 174 | #define EPH_SQET 0x0020 |
| 175 | #define EPH_LTX_BRD 0x0040 |
| 176 | #define EPH_TX_DEFR 0x0080 |
| 177 | #define EPH_LAT_COL 0x0200 |
| 178 | #define EPH_LOST_CAR 0x0400 |
| 179 | #define EPH_EXC_DEF 0x0800 |
| 180 | #define EPH_CTR_ROL 0x1000 |
| 181 | #define EPH_RX_OVRN 0x2000 |
| 182 | #define EPH_LINK_OK 0x4000 |
| 183 | #define EPH_TX_UNRN 0x8000 |
| 184 | #define MEMINFO 8 /* Memory Information Register */ |
| 185 | #define MEMCFG 10 /* Memory Configuration Register */ |
| 186 | |
| 187 | /* Bank 1 registers. */ |
| 188 | #define CONFIG 0 |
| 189 | #define CFG_MII_SELECT 0x8000 /* 91C100 only */ |
| 190 | #define CFG_NO_WAIT 0x1000 |
| 191 | #define CFG_FULL_STEP 0x0400 |
| 192 | #define CFG_SET_SQLCH 0x0200 |
| 193 | #define CFG_AUI_SELECT 0x0100 |
| 194 | #define CFG_16BIT 0x0080 |
| 195 | #define CFG_DIS_LINK 0x0040 |
| 196 | #define CFG_STATIC 0x0030 |
| 197 | #define CFG_IRQ_SEL_1 0x0004 |
| 198 | #define CFG_IRQ_SEL_0 0x0002 |
| 199 | #define BASE_ADDR 2 |
| 200 | #define ADDR0 4 |
| 201 | #define GENERAL 10 |
| 202 | #define CONTROL 12 |
| 203 | #define CTL_STORE 0x0001 |
| 204 | #define CTL_RELOAD 0x0002 |
| 205 | #define CTL_EE_SELECT 0x0004 |
| 206 | #define CTL_TE_ENABLE 0x0020 |
| 207 | #define CTL_CR_ENABLE 0x0040 |
| 208 | #define CTL_LE_ENABLE 0x0080 |
| 209 | #define CTL_AUTO_RELEASE 0x0800 |
| 210 | #define CTL_POWERDOWN 0x2000 |
| 211 | |
| 212 | /* Bank 2 registers. */ |
| 213 | #define MMU_CMD 0 |
| 214 | #define MC_ALLOC 0x20 /* or with number of 256 byte packets */ |
| 215 | #define MC_RESET 0x40 |
| 216 | #define MC_RELEASE 0x80 /* remove and release the current rx packet */ |
| 217 | #define MC_FREEPKT 0xA0 /* Release packet in PNR register */ |
| 218 | #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */ |
| 219 | #define PNR_ARR 2 |
| 220 | #define FIFO_PORTS 4 |
| 221 | #define FP_RXEMPTY 0x8000 |
| 222 | #define POINTER 6 |
| 223 | #define PTR_AUTO_INC 0x0040 |
| 224 | #define PTR_READ 0x2000 |
| 225 | #define PTR_AUTOINC 0x4000 |
| 226 | #define PTR_RCV 0x8000 |
| 227 | #define DATA_1 8 |
| 228 | #define INTERRUPT 12 |
| 229 | #define IM_RCV_INT 0x1 |
| 230 | #define IM_TX_INT 0x2 |
| 231 | #define IM_TX_EMPTY_INT 0x4 |
| 232 | #define IM_ALLOC_INT 0x8 |
| 233 | #define IM_RX_OVRN_INT 0x10 |
| 234 | #define IM_EPH_INT 0x20 |
| 235 | |
| 236 | #define RCR 4 |
| 237 | enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002, |
| 238 | RxEnable = 0x0100, RxStripCRC = 0x0200}; |
| 239 | #define RCR_SOFTRESET 0x8000 /* resets the chip */ |
| 240 | #define RCR_STRIP_CRC 0x200 /* strips CRC */ |
| 241 | #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */ |
| 242 | #define RCR_ALMUL 0x4 /* receive all multicast packets */ |
| 243 | #define RCR_PROMISC 0x2 /* enable promiscuous mode */ |
| 244 | |
| 245 | /* the normal settings for the RCR register : */ |
| 246 | #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE) |
| 247 | #define RCR_CLEAR 0x0 /* set it to a base state */ |
| 248 | #define COUNTER 6 |
| 249 | |
| 250 | /* BANK 3 -- not the same values as in smc9194! */ |
| 251 | #define MULTICAST0 0 |
| 252 | #define MULTICAST2 2 |
| 253 | #define MULTICAST4 4 |
| 254 | #define MULTICAST6 6 |
| 255 | #define MGMT 8 |
| 256 | #define REVISION 0x0a |
| 257 | |
| 258 | /* Transmit status bits. */ |
| 259 | #define TS_SUCCESS 0x0001 |
| 260 | #define TS_16COL 0x0010 |
| 261 | #define TS_LATCOL 0x0200 |
| 262 | #define TS_LOSTCAR 0x0400 |
| 263 | |
| 264 | /* Receive status bits. */ |
| 265 | #define RS_ALGNERR 0x8000 |
| 266 | #define RS_BADCRC 0x2000 |
| 267 | #define RS_ODDFRAME 0x1000 |
| 268 | #define RS_TOOLONG 0x0800 |
| 269 | #define RS_TOOSHORT 0x0400 |
| 270 | #define RS_MULTICAST 0x0001 |
| 271 | #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT) |
| 272 | |
| 273 | #define set_bits(v, p) outw(inw(p)|(v), (p)) |
| 274 | #define mask_bits(v, p) outw(inw(p)&(v), (p)) |
| 275 | |
| 276 | /*====================================================================*/ |
| 277 | |
| 278 | static dev_link_t *smc91c92_attach(void); |
| 279 | static void smc91c92_detach(dev_link_t *); |
| 280 | static void smc91c92_config(dev_link_t *link); |
| 281 | static void smc91c92_release(dev_link_t *link); |
| 282 | static int smc91c92_event(event_t event, int priority, |
| 283 | event_callback_args_t *args); |
| 284 | |
| 285 | static int smc_open(struct net_device *dev); |
| 286 | static int smc_close(struct net_device *dev); |
| 287 | static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| 288 | static void smc_tx_timeout(struct net_device *dev); |
| 289 | static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| 290 | static irqreturn_t smc_interrupt(int irq, void *dev_id, struct pt_regs *regs); |
| 291 | static void smc_rx(struct net_device *dev); |
| 292 | static struct net_device_stats *smc_get_stats(struct net_device *dev); |
| 293 | static void set_rx_mode(struct net_device *dev); |
| 294 | static int s9k_config(struct net_device *dev, struct ifmap *map); |
| 295 | static void smc_set_xcvr(struct net_device *dev, int if_port); |
| 296 | static void smc_reset(struct net_device *dev); |
| 297 | static void media_check(u_long arg); |
| 298 | static void mdio_sync(kio_addr_t addr); |
| 299 | static int mdio_read(struct net_device *dev, int phy_id, int loc); |
| 300 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int value); |
| 301 | static int smc_link_ok(struct net_device *dev); |
| 302 | static struct ethtool_ops ethtool_ops; |
| 303 | |
| 304 | /*====================================================================== |
| 305 | |
| 306 | smc91c92_attach() creates an "instance" of the driver, allocating |
| 307 | local data structures for one device. The device is registered |
| 308 | with Card Services. |
| 309 | |
| 310 | ======================================================================*/ |
| 311 | |
| 312 | static dev_link_t *smc91c92_attach(void) |
| 313 | { |
| 314 | client_reg_t client_reg; |
| 315 | struct smc_private *smc; |
| 316 | dev_link_t *link; |
| 317 | struct net_device *dev; |
| 318 | int ret; |
| 319 | |
| 320 | DEBUG(0, "smc91c92_attach()\n"); |
| 321 | |
| 322 | /* Create new ethernet device */ |
| 323 | dev = alloc_etherdev(sizeof(struct smc_private)); |
| 324 | if (!dev) |
| 325 | return NULL; |
| 326 | smc = netdev_priv(dev); |
| 327 | link = &smc->link; |
| 328 | link->priv = dev; |
| 329 | |
| 330 | spin_lock_init(&smc->lock); |
| 331 | link->io.NumPorts1 = 16; |
| 332 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| 333 | link->io.IOAddrLines = 4; |
| 334 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| 335 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 336 | link->irq.Handler = &smc_interrupt; |
| 337 | link->irq.Instance = dev; |
| 338 | link->conf.Attributes = CONF_ENABLE_IRQ; |
| 339 | link->conf.Vcc = 50; |
| 340 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 341 | |
| 342 | /* The SMC91c92-specific entries in the device structure. */ |
| 343 | SET_MODULE_OWNER(dev); |
| 344 | dev->hard_start_xmit = &smc_start_xmit; |
| 345 | dev->get_stats = &smc_get_stats; |
| 346 | dev->set_config = &s9k_config; |
| 347 | dev->set_multicast_list = &set_rx_mode; |
| 348 | dev->open = &smc_open; |
| 349 | dev->stop = &smc_close; |
| 350 | dev->do_ioctl = &smc_ioctl; |
| 351 | SET_ETHTOOL_OPS(dev, ðtool_ops); |
| 352 | #ifdef HAVE_TX_TIMEOUT |
| 353 | dev->tx_timeout = smc_tx_timeout; |
| 354 | dev->watchdog_timeo = TX_TIMEOUT; |
| 355 | #endif |
| 356 | |
| 357 | smc->mii_if.dev = dev; |
| 358 | smc->mii_if.mdio_read = mdio_read; |
| 359 | smc->mii_if.mdio_write = mdio_write; |
| 360 | smc->mii_if.phy_id_mask = 0x1f; |
| 361 | smc->mii_if.reg_num_mask = 0x1f; |
| 362 | |
| 363 | /* Register with Card Services */ |
| 364 | link->next = dev_list; |
| 365 | dev_list = link; |
| 366 | client_reg.dev_info = &dev_info; |
| 367 | client_reg.EventMask = CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | |
| 368 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | |
| 369 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; |
| 370 | client_reg.event_handler = &smc91c92_event; |
| 371 | client_reg.Version = 0x0210; |
| 372 | client_reg.event_callback_args.client_data = link; |
| 373 | ret = pcmcia_register_client(&link->handle, &client_reg); |
| 374 | if (ret != 0) { |
| 375 | cs_error(link->handle, RegisterClient, ret); |
| 376 | smc91c92_detach(link); |
| 377 | return NULL; |
| 378 | } |
| 379 | |
| 380 | return link; |
| 381 | } /* smc91c92_attach */ |
| 382 | |
| 383 | /*====================================================================== |
| 384 | |
| 385 | This deletes a driver "instance". The device is de-registered |
| 386 | with Card Services. If it has been released, all local data |
| 387 | structures are freed. Otherwise, the structures will be freed |
| 388 | when the device is released. |
| 389 | |
| 390 | ======================================================================*/ |
| 391 | |
| 392 | static void smc91c92_detach(dev_link_t *link) |
| 393 | { |
| 394 | struct net_device *dev = link->priv; |
| 395 | dev_link_t **linkp; |
| 396 | |
| 397 | DEBUG(0, "smc91c92_detach(0x%p)\n", link); |
| 398 | |
| 399 | /* Locate device structure */ |
| 400 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) |
| 401 | if (*linkp == link) break; |
| 402 | if (*linkp == NULL) |
| 403 | return; |
| 404 | |
| 405 | if (link->dev) |
| 406 | unregister_netdev(dev); |
| 407 | |
| 408 | if (link->state & DEV_CONFIG) |
| 409 | smc91c92_release(link); |
| 410 | |
| 411 | if (link->handle) |
| 412 | pcmcia_deregister_client(link->handle); |
| 413 | |
| 414 | /* Unlink device structure, free bits */ |
| 415 | *linkp = link->next; |
| 416 | free_netdev(dev); |
| 417 | } /* smc91c92_detach */ |
| 418 | |
| 419 | /*====================================================================*/ |
| 420 | |
| 421 | static int cvt_ascii_address(struct net_device *dev, char *s) |
| 422 | { |
| 423 | int i, j, da, c; |
| 424 | |
| 425 | if (strlen(s) != 12) |
| 426 | return -1; |
| 427 | for (i = 0; i < 6; i++) { |
| 428 | da = 0; |
| 429 | for (j = 0; j < 2; j++) { |
| 430 | c = *s++; |
| 431 | da <<= 4; |
| 432 | da += ((c >= '0') && (c <= '9')) ? |
| 433 | (c - '0') : ((c & 0x0f) + 9); |
| 434 | } |
| 435 | dev->dev_addr[i] = da; |
| 436 | } |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | /*====================================================================*/ |
| 441 | |
| 442 | static int first_tuple(client_handle_t handle, tuple_t *tuple, |
| 443 | cisparse_t *parse) |
| 444 | { |
| 445 | int i; |
| 446 | |
| 447 | if ((i = pcmcia_get_first_tuple(handle, tuple)) != CS_SUCCESS || |
| 448 | (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS) |
| 449 | return i; |
| 450 | return pcmcia_parse_tuple(handle, tuple, parse); |
| 451 | } |
| 452 | |
| 453 | static int next_tuple(client_handle_t handle, tuple_t *tuple, |
| 454 | cisparse_t *parse) |
| 455 | { |
| 456 | int i; |
| 457 | |
| 458 | if ((i = pcmcia_get_next_tuple(handle, tuple)) != CS_SUCCESS || |
| 459 | (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS) |
| 460 | return i; |
| 461 | return pcmcia_parse_tuple(handle, tuple, parse); |
| 462 | } |
| 463 | |
| 464 | /*====================================================================== |
| 465 | |
| 466 | Configuration stuff for Megahertz cards |
| 467 | |
| 468 | mhz_3288_power() is used to power up a 3288's ethernet chip. |
| 469 | mhz_mfc_config() handles socket setup for multifunction (1144 |
| 470 | and 3288) cards. mhz_setup() gets a card's hardware ethernet |
| 471 | address. |
| 472 | |
| 473 | ======================================================================*/ |
| 474 | |
| 475 | static int mhz_3288_power(dev_link_t *link) |
| 476 | { |
| 477 | struct net_device *dev = link->priv; |
| 478 | struct smc_private *smc = netdev_priv(dev); |
| 479 | u_char tmp; |
| 480 | |
| 481 | /* Read the ISR twice... */ |
| 482 | readb(smc->base+MEGAHERTZ_ISR); |
| 483 | udelay(5); |
| 484 | readb(smc->base+MEGAHERTZ_ISR); |
| 485 | |
| 486 | /* Pause 200ms... */ |
| 487 | mdelay(200); |
| 488 | |
| 489 | /* Now read and write the COR... */ |
| 490 | tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR); |
| 491 | udelay(5); |
| 492 | writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR); |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | static int mhz_mfc_config(dev_link_t *link) |
| 498 | { |
| 499 | struct net_device *dev = link->priv; |
| 500 | struct smc_private *smc = netdev_priv(dev); |
| 501 | tuple_t tuple; |
| 502 | cisparse_t parse; |
| 503 | u_char buf[255]; |
| 504 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; |
| 505 | win_req_t req; |
| 506 | memreq_t mem; |
| 507 | int i, k; |
| 508 | |
| 509 | link->conf.Attributes |= CONF_ENABLE_SPKR; |
| 510 | link->conf.Status = CCSR_AUDIO_ENA; |
| 511 | link->irq.Attributes = |
| 512 | IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT; |
| 513 | link->io.IOAddrLines = 16; |
| 514 | link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; |
| 515 | link->io.NumPorts2 = 8; |
| 516 | |
| 517 | tuple.Attributes = tuple.TupleOffset = 0; |
| 518 | tuple.TupleData = (cisdata_t *)buf; |
| 519 | tuple.TupleDataMax = sizeof(buf); |
| 520 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| 521 | |
| 522 | i = first_tuple(link->handle, &tuple, &parse); |
| 523 | /* The Megahertz combo cards have modem-like CIS entries, so |
| 524 | we have to explicitly try a bunch of port combinations. */ |
| 525 | while (i == CS_SUCCESS) { |
| 526 | link->conf.ConfigIndex = cf->index; |
| 527 | link->io.BasePort2 = cf->io.win[0].base; |
| 528 | for (k = 0; k < 0x400; k += 0x10) { |
| 529 | if (k & 0x80) continue; |
| 530 | link->io.BasePort1 = k ^ 0x300; |
| 531 | i = pcmcia_request_io(link->handle, &link->io); |
| 532 | if (i == CS_SUCCESS) break; |
| 533 | } |
| 534 | if (i == CS_SUCCESS) break; |
| 535 | i = next_tuple(link->handle, &tuple, &parse); |
| 536 | } |
| 537 | if (i != CS_SUCCESS) |
| 538 | return i; |
| 539 | dev->base_addr = link->io.BasePort1; |
| 540 | |
| 541 | /* Allocate a memory window, for accessing the ISR */ |
| 542 | req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE; |
| 543 | req.Base = req.Size = 0; |
| 544 | req.AccessSpeed = 0; |
| 545 | i = pcmcia_request_window(&link->handle, &req, &link->win); |
| 546 | if (i != CS_SUCCESS) |
| 547 | return i; |
| 548 | smc->base = ioremap(req.Base, req.Size); |
| 549 | mem.CardOffset = mem.Page = 0; |
| 550 | if (smc->manfid == MANFID_MOTOROLA) |
| 551 | mem.CardOffset = link->conf.ConfigBase; |
| 552 | i = pcmcia_map_mem_page(link->win, &mem); |
| 553 | |
| 554 | if ((i == CS_SUCCESS) |
| 555 | && (smc->manfid == MANFID_MEGAHERTZ) |
| 556 | && (smc->cardid == PRODID_MEGAHERTZ_EM3288)) |
| 557 | mhz_3288_power(link); |
| 558 | |
| 559 | return i; |
| 560 | } |
| 561 | |
| 562 | static int mhz_setup(dev_link_t *link) |
| 563 | { |
| 564 | client_handle_t handle = link->handle; |
| 565 | struct net_device *dev = link->priv; |
| 566 | tuple_t tuple; |
| 567 | cisparse_t parse; |
| 568 | u_char buf[255], *station_addr; |
| 569 | |
| 570 | tuple.Attributes = tuple.TupleOffset = 0; |
| 571 | tuple.TupleData = buf; |
| 572 | tuple.TupleDataMax = sizeof(buf); |
| 573 | |
| 574 | /* Read the station address from the CIS. It is stored as the last |
| 575 | (fourth) string in the Version 1 Version/ID tuple. */ |
| 576 | tuple.DesiredTuple = CISTPL_VERS_1; |
| 577 | if (first_tuple(handle, &tuple, &parse) != CS_SUCCESS) |
| 578 | return -1; |
| 579 | /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */ |
| 580 | if (next_tuple(handle, &tuple, &parse) != CS_SUCCESS) |
| 581 | first_tuple(handle, &tuple, &parse); |
| 582 | if (parse.version_1.ns > 3) { |
| 583 | station_addr = parse.version_1.str + parse.version_1.ofs[3]; |
| 584 | if (cvt_ascii_address(dev, station_addr) == 0) |
| 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | /* Another possibility: for the EM3288, in a special tuple */ |
| 589 | tuple.DesiredTuple = 0x81; |
| 590 | if (pcmcia_get_first_tuple(handle, &tuple) != CS_SUCCESS) |
| 591 | return -1; |
| 592 | if (pcmcia_get_tuple_data(handle, &tuple) != CS_SUCCESS) |
| 593 | return -1; |
| 594 | buf[12] = '\0'; |
| 595 | if (cvt_ascii_address(dev, buf) == 0) |
| 596 | return 0; |
| 597 | |
| 598 | return -1; |
| 599 | } |
| 600 | |
| 601 | /*====================================================================== |
| 602 | |
| 603 | Configuration stuff for the Motorola Mariner |
| 604 | |
| 605 | mot_config() writes directly to the Mariner configuration |
| 606 | registers because the CIS is just bogus. |
| 607 | |
| 608 | ======================================================================*/ |
| 609 | |
| 610 | static void mot_config(dev_link_t *link) |
| 611 | { |
| 612 | struct net_device *dev = link->priv; |
| 613 | struct smc_private *smc = netdev_priv(dev); |
| 614 | kio_addr_t ioaddr = dev->base_addr; |
| 615 | kio_addr_t iouart = link->io.BasePort2; |
| 616 | |
| 617 | /* Set UART base address and force map with COR bit 1 */ |
| 618 | writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0); |
| 619 | writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1); |
| 620 | writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR); |
| 621 | |
| 622 | /* Set SMC base address and force map with COR bit 1 */ |
| 623 | writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0); |
| 624 | writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1); |
| 625 | writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR); |
| 626 | |
| 627 | /* Wait for things to settle down */ |
| 628 | mdelay(100); |
| 629 | } |
| 630 | |
| 631 | static int mot_setup(dev_link_t *link) |
| 632 | { |
| 633 | struct net_device *dev = link->priv; |
| 634 | kio_addr_t ioaddr = dev->base_addr; |
| 635 | int i, wait, loop; |
| 636 | u_int addr; |
| 637 | |
| 638 | /* Read Ethernet address from Serial EEPROM */ |
| 639 | |
| 640 | for (i = 0; i < 3; i++) { |
| 641 | SMC_SELECT_BANK(2); |
| 642 | outw(MOT_EEPROM + i, ioaddr + POINTER); |
| 643 | SMC_SELECT_BANK(1); |
| 644 | outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL); |
| 645 | |
| 646 | for (loop = wait = 0; loop < 200; loop++) { |
| 647 | udelay(10); |
| 648 | wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL)); |
| 649 | if (wait == 0) break; |
| 650 | } |
| 651 | |
| 652 | if (wait) |
| 653 | return -1; |
| 654 | |
| 655 | addr = inw(ioaddr + GENERAL); |
| 656 | dev->dev_addr[2*i] = addr & 0xff; |
| 657 | dev->dev_addr[2*i+1] = (addr >> 8) & 0xff; |
| 658 | } |
| 659 | |
| 660 | return 0; |
| 661 | } |
| 662 | |
| 663 | /*====================================================================*/ |
| 664 | |
| 665 | static int smc_config(dev_link_t *link) |
| 666 | { |
| 667 | struct net_device *dev = link->priv; |
| 668 | tuple_t tuple; |
| 669 | cisparse_t parse; |
| 670 | u_char buf[255]; |
| 671 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; |
| 672 | int i; |
| 673 | |
| 674 | tuple.Attributes = tuple.TupleOffset = 0; |
| 675 | tuple.TupleData = (cisdata_t *)buf; |
| 676 | tuple.TupleDataMax = sizeof(buf); |
| 677 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| 678 | |
| 679 | link->io.NumPorts1 = 16; |
| 680 | i = first_tuple(link->handle, &tuple, &parse); |
| 681 | while (i != CS_NO_MORE_ITEMS) { |
| 682 | if (i == CS_SUCCESS) { |
| 683 | link->conf.ConfigIndex = cf->index; |
| 684 | link->io.BasePort1 = cf->io.win[0].base; |
| 685 | link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK; |
| 686 | i = pcmcia_request_io(link->handle, &link->io); |
| 687 | if (i == CS_SUCCESS) break; |
| 688 | } |
| 689 | i = next_tuple(link->handle, &tuple, &parse); |
| 690 | } |
| 691 | if (i == CS_SUCCESS) |
| 692 | dev->base_addr = link->io.BasePort1; |
| 693 | return i; |
| 694 | } |
| 695 | |
| 696 | static int smc_setup(dev_link_t *link) |
| 697 | { |
| 698 | client_handle_t handle = link->handle; |
| 699 | struct net_device *dev = link->priv; |
| 700 | tuple_t tuple; |
| 701 | cisparse_t parse; |
| 702 | cistpl_lan_node_id_t *node_id; |
| 703 | u_char buf[255], *station_addr; |
| 704 | int i; |
| 705 | |
| 706 | tuple.Attributes = tuple.TupleOffset = 0; |
| 707 | tuple.TupleData = buf; |
| 708 | tuple.TupleDataMax = sizeof(buf); |
| 709 | |
| 710 | /* Check for a LAN function extension tuple */ |
| 711 | tuple.DesiredTuple = CISTPL_FUNCE; |
| 712 | i = first_tuple(handle, &tuple, &parse); |
| 713 | while (i == CS_SUCCESS) { |
| 714 | if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID) |
| 715 | break; |
| 716 | i = next_tuple(handle, &tuple, &parse); |
| 717 | } |
| 718 | if (i == CS_SUCCESS) { |
| 719 | node_id = (cistpl_lan_node_id_t *)parse.funce.data; |
| 720 | if (node_id->nb == 6) { |
| 721 | for (i = 0; i < 6; i++) |
| 722 | dev->dev_addr[i] = node_id->id[i]; |
| 723 | return 0; |
| 724 | } |
| 725 | } |
| 726 | /* Try the third string in the Version 1 Version/ID tuple. */ |
| 727 | tuple.DesiredTuple = CISTPL_VERS_1; |
| 728 | if (first_tuple(handle, &tuple, &parse) != CS_SUCCESS) |
| 729 | return -1; |
| 730 | station_addr = parse.version_1.str + parse.version_1.ofs[2]; |
| 731 | if (cvt_ascii_address(dev, station_addr) == 0) |
| 732 | return 0; |
| 733 | |
| 734 | return -1; |
| 735 | } |
| 736 | |
| 737 | /*====================================================================*/ |
| 738 | |
| 739 | static int osi_config(dev_link_t *link) |
| 740 | { |
| 741 | struct net_device *dev = link->priv; |
| 742 | static kio_addr_t com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 }; |
| 743 | int i, j; |
| 744 | |
| 745 | link->conf.Attributes |= CONF_ENABLE_SPKR; |
| 746 | link->conf.Status = CCSR_AUDIO_ENA; |
| 747 | link->irq.Attributes = |
| 748 | IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT; |
| 749 | link->io.NumPorts1 = 64; |
| 750 | link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; |
| 751 | link->io.NumPorts2 = 8; |
| 752 | link->io.IOAddrLines = 16; |
| 753 | |
| 754 | /* Enable Hard Decode, LAN, Modem */ |
| 755 | link->conf.ConfigIndex = 0x23; |
| 756 | |
| 757 | for (i = j = 0; j < 4; j++) { |
| 758 | link->io.BasePort2 = com[j]; |
| 759 | i = pcmcia_request_io(link->handle, &link->io); |
| 760 | if (i == CS_SUCCESS) break; |
| 761 | } |
| 762 | if (i != CS_SUCCESS) { |
| 763 | /* Fallback: turn off hard decode */ |
| 764 | link->conf.ConfigIndex = 0x03; |
| 765 | link->io.NumPorts2 = 0; |
| 766 | i = pcmcia_request_io(link->handle, &link->io); |
| 767 | } |
| 768 | dev->base_addr = link->io.BasePort1 + 0x10; |
| 769 | return i; |
| 770 | } |
| 771 | |
| 772 | static int osi_setup(dev_link_t *link, u_short manfid, u_short cardid) |
| 773 | { |
| 774 | client_handle_t handle = link->handle; |
| 775 | struct net_device *dev = link->priv; |
| 776 | tuple_t tuple; |
| 777 | u_char buf[255]; |
| 778 | int i; |
| 779 | |
| 780 | tuple.Attributes = TUPLE_RETURN_COMMON; |
| 781 | tuple.TupleData = buf; |
| 782 | tuple.TupleDataMax = sizeof(buf); |
| 783 | tuple.TupleOffset = 0; |
| 784 | |
| 785 | /* Read the station address from tuple 0x90, subtuple 0x04 */ |
| 786 | tuple.DesiredTuple = 0x90; |
| 787 | i = pcmcia_get_first_tuple(handle, &tuple); |
| 788 | while (i == CS_SUCCESS) { |
| 789 | i = pcmcia_get_tuple_data(handle, &tuple); |
| 790 | if ((i != CS_SUCCESS) || (buf[0] == 0x04)) |
| 791 | break; |
| 792 | i = pcmcia_get_next_tuple(handle, &tuple); |
| 793 | } |
| 794 | if (i != CS_SUCCESS) |
| 795 | return -1; |
| 796 | for (i = 0; i < 6; i++) |
| 797 | dev->dev_addr[i] = buf[i+2]; |
| 798 | |
| 799 | if (((manfid == MANFID_OSITECH) && |
| 800 | (cardid == PRODID_OSITECH_SEVEN)) || |
| 801 | ((manfid == MANFID_PSION) && |
| 802 | (cardid == PRODID_PSION_NET100))) { |
| 803 | /* Download the Seven of Diamonds firmware */ |
| 804 | for (i = 0; i < sizeof(__Xilinx7OD); i++) { |
| 805 | outb(__Xilinx7OD[i], link->io.BasePort1+2); |
| 806 | udelay(50); |
| 807 | } |
| 808 | } else if (manfid == MANFID_OSITECH) { |
| 809 | /* Make sure both functions are powered up */ |
| 810 | set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR); |
| 811 | /* Now, turn on the interrupt for both card functions */ |
| 812 | set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR); |
| 813 | DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n", |
| 814 | inw(link->io.BasePort1 + OSITECH_AUI_PWR), |
| 815 | inw(link->io.BasePort1 + OSITECH_RESET_ISR)); |
| 816 | } |
| 817 | |
| 818 | return 0; |
| 819 | } |
| 820 | |
| 821 | /*====================================================================== |
| 822 | |
| 823 | This verifies that the chip is some SMC91cXX variant, and returns |
| 824 | the revision code if successful. Otherwise, it returns -ENODEV. |
| 825 | |
| 826 | ======================================================================*/ |
| 827 | |
| 828 | static int check_sig(dev_link_t *link) |
| 829 | { |
| 830 | struct net_device *dev = link->priv; |
| 831 | kio_addr_t ioaddr = dev->base_addr; |
| 832 | int width; |
| 833 | u_short s; |
| 834 | |
| 835 | SMC_SELECT_BANK(1); |
| 836 | if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) { |
| 837 | /* Try powering up the chip */ |
| 838 | outw(0, ioaddr + CONTROL); |
| 839 | mdelay(55); |
| 840 | } |
| 841 | |
| 842 | /* Try setting bus width */ |
| 843 | width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO); |
| 844 | s = inb(ioaddr + CONFIG); |
| 845 | if (width) |
| 846 | s |= CFG_16BIT; |
| 847 | else |
| 848 | s &= ~CFG_16BIT; |
| 849 | outb(s, ioaddr + CONFIG); |
| 850 | |
| 851 | /* Check Base Address Register to make sure bus width is OK */ |
| 852 | s = inw(ioaddr + BASE_ADDR); |
| 853 | if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) && |
| 854 | ((s >> 8) != (s & 0xff))) { |
| 855 | SMC_SELECT_BANK(3); |
| 856 | s = inw(ioaddr + REVISION); |
| 857 | return (s & 0xff); |
| 858 | } |
| 859 | |
| 860 | if (width) { |
| 861 | event_callback_args_t args; |
| 862 | printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n"); |
| 863 | args.client_data = link; |
| 864 | smc91c92_event(CS_EVENT_RESET_PHYSICAL, 0, &args); |
| 865 | pcmcia_release_io(link->handle, &link->io); |
| 866 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 867 | pcmcia_request_io(link->handle, &link->io); |
| 868 | smc91c92_event(CS_EVENT_CARD_RESET, 0, &args); |
| 869 | return check_sig(link); |
| 870 | } |
| 871 | return -ENODEV; |
| 872 | } |
| 873 | |
| 874 | /*====================================================================== |
| 875 | |
| 876 | smc91c92_config() is scheduled to run after a CARD_INSERTION event |
| 877 | is received, to configure the PCMCIA socket, and to make the |
| 878 | ethernet device available to the system. |
| 879 | |
| 880 | ======================================================================*/ |
| 881 | |
| 882 | #define CS_EXIT_TEST(ret, svc, label) \ |
| 883 | if (ret != CS_SUCCESS) { cs_error(link->handle, svc, ret); goto label; } |
| 884 | |
| 885 | static void smc91c92_config(dev_link_t *link) |
| 886 | { |
| 887 | client_handle_t handle = link->handle; |
| 888 | struct net_device *dev = link->priv; |
| 889 | struct smc_private *smc = netdev_priv(dev); |
| 890 | tuple_t tuple; |
| 891 | cisparse_t parse; |
| 892 | u_short buf[32]; |
| 893 | char *name; |
| 894 | int i, j, rev; |
| 895 | kio_addr_t ioaddr; |
| 896 | u_long mir; |
| 897 | |
| 898 | DEBUG(0, "smc91c92_config(0x%p)\n", link); |
| 899 | |
| 900 | tuple.Attributes = tuple.TupleOffset = 0; |
| 901 | tuple.TupleData = (cisdata_t *)buf; |
| 902 | tuple.TupleDataMax = sizeof(buf); |
| 903 | |
| 904 | tuple.DesiredTuple = CISTPL_CONFIG; |
| 905 | i = first_tuple(handle, &tuple, &parse); |
| 906 | CS_EXIT_TEST(i, ParseTuple, config_failed); |
| 907 | link->conf.ConfigBase = parse.config.base; |
| 908 | link->conf.Present = parse.config.rmask[0]; |
| 909 | |
| 910 | tuple.DesiredTuple = CISTPL_MANFID; |
| 911 | tuple.Attributes = TUPLE_RETURN_COMMON; |
| 912 | if (first_tuple(handle, &tuple, &parse) == CS_SUCCESS) { |
| 913 | smc->manfid = parse.manfid.manf; |
| 914 | smc->cardid = parse.manfid.card; |
| 915 | } |
| 916 | |
| 917 | /* Configure card */ |
| 918 | link->state |= DEV_CONFIG; |
| 919 | |
| 920 | if ((smc->manfid == MANFID_OSITECH) && |
| 921 | (smc->cardid != PRODID_OSITECH_SEVEN)) { |
| 922 | i = osi_config(link); |
| 923 | } else if ((smc->manfid == MANFID_MOTOROLA) || |
| 924 | ((smc->manfid == MANFID_MEGAHERTZ) && |
| 925 | ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) || |
| 926 | (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) { |
| 927 | i = mhz_mfc_config(link); |
| 928 | } else { |
| 929 | i = smc_config(link); |
| 930 | } |
| 931 | CS_EXIT_TEST(i, RequestIO, config_failed); |
| 932 | |
| 933 | i = pcmcia_request_irq(link->handle, &link->irq); |
| 934 | CS_EXIT_TEST(i, RequestIRQ, config_failed); |
| 935 | i = pcmcia_request_configuration(link->handle, &link->conf); |
| 936 | CS_EXIT_TEST(i, RequestConfiguration, config_failed); |
| 937 | |
| 938 | if (smc->manfid == MANFID_MOTOROLA) |
| 939 | mot_config(link); |
| 940 | |
| 941 | dev->irq = link->irq.AssignedIRQ; |
| 942 | |
| 943 | if ((if_port >= 0) && (if_port <= 2)) |
| 944 | dev->if_port = if_port; |
| 945 | else |
| 946 | printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n"); |
| 947 | |
| 948 | switch (smc->manfid) { |
| 949 | case MANFID_OSITECH: |
| 950 | case MANFID_PSION: |
| 951 | i = osi_setup(link, smc->manfid, smc->cardid); break; |
| 952 | case MANFID_SMC: |
| 953 | case MANFID_NEW_MEDIA: |
| 954 | i = smc_setup(link); break; |
| 955 | case 0x128: /* For broken Megahertz cards */ |
| 956 | case MANFID_MEGAHERTZ: |
| 957 | i = mhz_setup(link); break; |
| 958 | case MANFID_MOTOROLA: |
| 959 | default: /* get the hw address from EEPROM */ |
| 960 | i = mot_setup(link); break; |
| 961 | } |
| 962 | |
| 963 | if (i != 0) { |
| 964 | printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n"); |
| 965 | goto config_undo; |
| 966 | } |
| 967 | |
| 968 | smc->duplex = 0; |
| 969 | smc->rx_ovrn = 0; |
| 970 | |
| 971 | rev = check_sig(link); |
| 972 | name = "???"; |
| 973 | if (rev > 0) |
| 974 | switch (rev >> 4) { |
| 975 | case 3: name = "92"; break; |
| 976 | case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break; |
| 977 | case 5: name = "95"; break; |
| 978 | case 7: name = "100"; break; |
| 979 | case 8: name = "100-FD"; break; |
| 980 | case 9: name = "110"; break; |
| 981 | } |
| 982 | |
| 983 | ioaddr = dev->base_addr; |
| 984 | if (rev > 0) { |
| 985 | u_long mcr; |
| 986 | SMC_SELECT_BANK(0); |
| 987 | mir = inw(ioaddr + MEMINFO) & 0xff; |
| 988 | if (mir == 0xff) mir++; |
| 989 | /* Get scale factor for memory size */ |
| 990 | mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200; |
| 991 | mir *= 128 * (1<<((mcr >> 9) & 7)); |
| 992 | SMC_SELECT_BANK(1); |
| 993 | smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT; |
| 994 | smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC; |
| 995 | if (smc->manfid == MANFID_OSITECH) |
| 996 | smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0; |
| 997 | if ((rev >> 4) >= 7) |
| 998 | smc->cfg |= CFG_MII_SELECT; |
| 999 | } else |
| 1000 | mir = 0; |
| 1001 | |
| 1002 | if (smc->cfg & CFG_MII_SELECT) { |
| 1003 | SMC_SELECT_BANK(3); |
| 1004 | |
| 1005 | for (i = 0; i < 32; i++) { |
| 1006 | j = mdio_read(dev, i, 1); |
| 1007 | if ((j != 0) && (j != 0xffff)) break; |
| 1008 | } |
| 1009 | smc->mii_if.phy_id = (i < 32) ? i : -1; |
| 1010 | |
| 1011 | SMC_SELECT_BANK(0); |
| 1012 | } |
| 1013 | |
| 1014 | link->dev = &smc->node; |
| 1015 | link->state &= ~DEV_CONFIG_PENDING; |
| 1016 | SET_NETDEV_DEV(dev, &handle_to_dev(handle)); |
| 1017 | |
| 1018 | if (register_netdev(dev) != 0) { |
| 1019 | printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n"); |
| 1020 | link->dev = NULL; |
| 1021 | goto config_undo; |
| 1022 | } |
| 1023 | |
| 1024 | strcpy(smc->node.dev_name, dev->name); |
| 1025 | |
| 1026 | printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, " |
| 1027 | "hw_addr ", dev->name, name, (rev & 0x0f), dev->base_addr, |
| 1028 | dev->irq); |
| 1029 | for (i = 0; i < 6; i++) |
| 1030 | printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n")); |
| 1031 | |
| 1032 | if (rev > 0) { |
| 1033 | if (mir & 0x3ff) |
| 1034 | printk(KERN_INFO " %lu byte", mir); |
| 1035 | else |
| 1036 | printk(KERN_INFO " %lu kb", mir>>10); |
| 1037 | printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ? |
| 1038 | "MII" : if_names[dev->if_port]); |
| 1039 | } |
| 1040 | |
| 1041 | if (smc->cfg & CFG_MII_SELECT) { |
| 1042 | if (smc->mii_if.phy_id != -1) { |
| 1043 | DEBUG(0, " MII transceiver at index %d, status %x.\n", |
| 1044 | smc->mii_if.phy_id, j); |
| 1045 | } else { |
| 1046 | printk(KERN_NOTICE " No MII transceivers found!\n"); |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | return; |
| 1051 | |
| 1052 | config_undo: |
| 1053 | unregister_netdev(dev); |
| 1054 | config_failed: /* CS_EXIT_TEST() calls jump to here... */ |
| 1055 | smc91c92_release(link); |
| 1056 | link->state &= ~DEV_CONFIG_PENDING; |
| 1057 | |
| 1058 | } /* smc91c92_config */ |
| 1059 | |
| 1060 | /*====================================================================== |
| 1061 | |
| 1062 | After a card is removed, smc91c92_release() will unregister the net |
| 1063 | device, and release the PCMCIA configuration. If the device is |
| 1064 | still open, this will be postponed until it is closed. |
| 1065 | |
| 1066 | ======================================================================*/ |
| 1067 | |
| 1068 | static void smc91c92_release(dev_link_t *link) |
| 1069 | { |
| 1070 | |
| 1071 | DEBUG(0, "smc91c92_release(0x%p)\n", link); |
| 1072 | |
| 1073 | pcmcia_release_configuration(link->handle); |
| 1074 | pcmcia_release_io(link->handle, &link->io); |
| 1075 | pcmcia_release_irq(link->handle, &link->irq); |
| 1076 | if (link->win) { |
| 1077 | struct net_device *dev = link->priv; |
| 1078 | struct smc_private *smc = netdev_priv(dev); |
| 1079 | iounmap(smc->base); |
| 1080 | pcmcia_release_window(link->win); |
| 1081 | } |
| 1082 | |
| 1083 | link->state &= ~DEV_CONFIG; |
| 1084 | } |
| 1085 | |
| 1086 | /*====================================================================== |
| 1087 | |
| 1088 | The card status event handler. Mostly, this schedules other |
| 1089 | stuff to run after an event is received. A CARD_REMOVAL event |
| 1090 | also sets some flags to discourage the net drivers from trying |
| 1091 | to talk to the card any more. |
| 1092 | |
| 1093 | ======================================================================*/ |
| 1094 | |
| 1095 | static int smc91c92_event(event_t event, int priority, |
| 1096 | event_callback_args_t *args) |
| 1097 | { |
| 1098 | dev_link_t *link = args->client_data; |
| 1099 | struct net_device *dev = link->priv; |
| 1100 | struct smc_private *smc = netdev_priv(dev); |
| 1101 | int i; |
| 1102 | |
| 1103 | DEBUG(1, "smc91c92_event(0x%06x)\n", event); |
| 1104 | |
| 1105 | switch (event) { |
| 1106 | case CS_EVENT_CARD_REMOVAL: |
| 1107 | link->state &= ~DEV_PRESENT; |
| 1108 | if (link->state & DEV_CONFIG) |
| 1109 | netif_device_detach(dev); |
| 1110 | break; |
| 1111 | case CS_EVENT_CARD_INSERTION: |
| 1112 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| 1113 | smc91c92_config(link); |
| 1114 | break; |
| 1115 | case CS_EVENT_PM_SUSPEND: |
| 1116 | link->state |= DEV_SUSPEND; |
| 1117 | /* Fall through... */ |
| 1118 | case CS_EVENT_RESET_PHYSICAL: |
| 1119 | if (link->state & DEV_CONFIG) { |
| 1120 | if (link->open) |
| 1121 | netif_device_detach(dev); |
| 1122 | pcmcia_release_configuration(link->handle); |
| 1123 | } |
| 1124 | break; |
| 1125 | case CS_EVENT_PM_RESUME: |
| 1126 | link->state &= ~DEV_SUSPEND; |
| 1127 | /* Fall through... */ |
| 1128 | case CS_EVENT_CARD_RESET: |
| 1129 | if (link->state & DEV_CONFIG) { |
| 1130 | if ((smc->manfid == MANFID_MEGAHERTZ) && |
| 1131 | (smc->cardid == PRODID_MEGAHERTZ_EM3288)) |
| 1132 | mhz_3288_power(link); |
| 1133 | pcmcia_request_configuration(link->handle, &link->conf); |
| 1134 | if (smc->manfid == MANFID_MOTOROLA) |
| 1135 | mot_config(link); |
| 1136 | if ((smc->manfid == MANFID_OSITECH) && |
| 1137 | (smc->cardid != PRODID_OSITECH_SEVEN)) { |
| 1138 | /* Power up the card and enable interrupts */ |
| 1139 | set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR); |
| 1140 | set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR); |
| 1141 | } |
| 1142 | if (((smc->manfid == MANFID_OSITECH) && |
| 1143 | (smc->cardid == PRODID_OSITECH_SEVEN)) || |
| 1144 | ((smc->manfid == MANFID_PSION) && |
| 1145 | (smc->cardid == PRODID_PSION_NET100))) { |
| 1146 | /* Download the Seven of Diamonds firmware */ |
| 1147 | for (i = 0; i < sizeof(__Xilinx7OD); i++) { |
| 1148 | outb(__Xilinx7OD[i], link->io.BasePort1+2); |
| 1149 | udelay(50); |
| 1150 | } |
| 1151 | } |
| 1152 | if (link->open) { |
| 1153 | smc_reset(dev); |
| 1154 | netif_device_attach(dev); |
| 1155 | } |
| 1156 | } |
| 1157 | break; |
| 1158 | } |
| 1159 | return 0; |
| 1160 | } /* smc91c92_event */ |
| 1161 | |
| 1162 | /*====================================================================== |
| 1163 | |
| 1164 | MII interface support for SMC91cXX based cards |
| 1165 | ======================================================================*/ |
| 1166 | |
| 1167 | #define MDIO_SHIFT_CLK 0x04 |
| 1168 | #define MDIO_DATA_OUT 0x01 |
| 1169 | #define MDIO_DIR_WRITE 0x08 |
| 1170 | #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE) |
| 1171 | #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT) |
| 1172 | #define MDIO_DATA_READ 0x02 |
| 1173 | |
| 1174 | static void mdio_sync(kio_addr_t addr) |
| 1175 | { |
| 1176 | int bits; |
| 1177 | for (bits = 0; bits < 32; bits++) { |
| 1178 | outb(MDIO_DATA_WRITE1, addr); |
| 1179 | outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr); |
| 1180 | } |
| 1181 | } |
| 1182 | |
| 1183 | static int mdio_read(struct net_device *dev, int phy_id, int loc) |
| 1184 | { |
| 1185 | kio_addr_t addr = dev->base_addr + MGMT; |
| 1186 | u_int cmd = (0x06<<10)|(phy_id<<5)|loc; |
| 1187 | int i, retval = 0; |
| 1188 | |
| 1189 | mdio_sync(addr); |
| 1190 | for (i = 13; i >= 0; i--) { |
| 1191 | int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; |
| 1192 | outb(dat, addr); |
| 1193 | outb(dat | MDIO_SHIFT_CLK, addr); |
| 1194 | } |
| 1195 | for (i = 19; i > 0; i--) { |
| 1196 | outb(0, addr); |
| 1197 | retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0); |
| 1198 | outb(MDIO_SHIFT_CLK, addr); |
| 1199 | } |
| 1200 | return (retval>>1) & 0xffff; |
| 1201 | } |
| 1202 | |
| 1203 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int value) |
| 1204 | { |
| 1205 | kio_addr_t addr = dev->base_addr + MGMT; |
| 1206 | u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value; |
| 1207 | int i; |
| 1208 | |
| 1209 | mdio_sync(addr); |
| 1210 | for (i = 31; i >= 0; i--) { |
| 1211 | int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; |
| 1212 | outb(dat, addr); |
| 1213 | outb(dat | MDIO_SHIFT_CLK, addr); |
| 1214 | } |
| 1215 | for (i = 1; i >= 0; i--) { |
| 1216 | outb(0, addr); |
| 1217 | outb(MDIO_SHIFT_CLK, addr); |
| 1218 | } |
| 1219 | } |
| 1220 | |
| 1221 | /*====================================================================== |
| 1222 | |
| 1223 | The driver core code, most of which should be common with a |
| 1224 | non-PCMCIA implementation. |
| 1225 | |
| 1226 | ======================================================================*/ |
| 1227 | |
| 1228 | #ifdef PCMCIA_DEBUG |
| 1229 | static void smc_dump(struct net_device *dev) |
| 1230 | { |
| 1231 | kio_addr_t ioaddr = dev->base_addr; |
| 1232 | u_short i, w, save; |
| 1233 | save = inw(ioaddr + BANK_SELECT); |
| 1234 | for (w = 0; w < 4; w++) { |
| 1235 | SMC_SELECT_BANK(w); |
| 1236 | printk(KERN_DEBUG "bank %d: ", w); |
| 1237 | for (i = 0; i < 14; i += 2) |
| 1238 | printk(" %04x", inw(ioaddr + i)); |
| 1239 | printk("\n"); |
| 1240 | } |
| 1241 | outw(save, ioaddr + BANK_SELECT); |
| 1242 | } |
| 1243 | #endif |
| 1244 | |
| 1245 | static int smc_open(struct net_device *dev) |
| 1246 | { |
| 1247 | struct smc_private *smc = netdev_priv(dev); |
| 1248 | dev_link_t *link = &smc->link; |
| 1249 | |
| 1250 | #ifdef PCMCIA_DEBUG |
| 1251 | DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n", |
| 1252 | dev->name, dev, inw(dev->base_addr + BANK_SELECT)); |
| 1253 | if (pc_debug > 1) smc_dump(dev); |
| 1254 | #endif |
| 1255 | |
| 1256 | /* Check that the PCMCIA card is still here. */ |
| 1257 | if (!DEV_OK(link)) |
| 1258 | return -ENODEV; |
| 1259 | /* Physical device present signature. */ |
| 1260 | if (check_sig(link) < 0) { |
| 1261 | printk("smc91c92_cs: Yikes! Bad chip signature!\n"); |
| 1262 | return -ENODEV; |
| 1263 | } |
| 1264 | link->open++; |
| 1265 | |
| 1266 | netif_start_queue(dev); |
| 1267 | smc->saved_skb = NULL; |
| 1268 | smc->packets_waiting = 0; |
| 1269 | |
| 1270 | smc_reset(dev); |
| 1271 | init_timer(&smc->media); |
| 1272 | smc->media.function = &media_check; |
| 1273 | smc->media.data = (u_long) dev; |
| 1274 | smc->media.expires = jiffies + HZ; |
| 1275 | add_timer(&smc->media); |
| 1276 | |
| 1277 | return 0; |
| 1278 | } /* smc_open */ |
| 1279 | |
| 1280 | /*====================================================================*/ |
| 1281 | |
| 1282 | static int smc_close(struct net_device *dev) |
| 1283 | { |
| 1284 | struct smc_private *smc = netdev_priv(dev); |
| 1285 | dev_link_t *link = &smc->link; |
| 1286 | kio_addr_t ioaddr = dev->base_addr; |
| 1287 | |
| 1288 | DEBUG(0, "%s: smc_close(), status %4.4x.\n", |
| 1289 | dev->name, inw(ioaddr + BANK_SELECT)); |
| 1290 | |
| 1291 | netif_stop_queue(dev); |
| 1292 | |
| 1293 | /* Shut off all interrupts, and turn off the Tx and Rx sections. |
| 1294 | Don't bother to check for chip present. */ |
| 1295 | SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */ |
| 1296 | outw(0, ioaddr + INTERRUPT); |
| 1297 | SMC_SELECT_BANK(0); |
| 1298 | mask_bits(0xff00, ioaddr + RCR); |
| 1299 | mask_bits(0xff00, ioaddr + TCR); |
| 1300 | |
| 1301 | /* Put the chip into power-down mode. */ |
| 1302 | SMC_SELECT_BANK(1); |
| 1303 | outw(CTL_POWERDOWN, ioaddr + CONTROL ); |
| 1304 | |
| 1305 | link->open--; |
| 1306 | del_timer_sync(&smc->media); |
| 1307 | |
| 1308 | return 0; |
| 1309 | } /* smc_close */ |
| 1310 | |
| 1311 | /*====================================================================== |
| 1312 | |
| 1313 | Transfer a packet to the hardware and trigger the packet send. |
| 1314 | This may be called at either from either the Tx queue code |
| 1315 | or the interrupt handler. |
| 1316 | |
| 1317 | ======================================================================*/ |
| 1318 | |
| 1319 | static void smc_hardware_send_packet(struct net_device * dev) |
| 1320 | { |
| 1321 | struct smc_private *smc = netdev_priv(dev); |
| 1322 | struct sk_buff *skb = smc->saved_skb; |
| 1323 | kio_addr_t ioaddr = dev->base_addr; |
| 1324 | u_char packet_no; |
| 1325 | |
| 1326 | if (!skb) { |
| 1327 | printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name); |
| 1328 | return; |
| 1329 | } |
| 1330 | |
| 1331 | /* There should be a packet slot waiting. */ |
| 1332 | packet_no = inw(ioaddr + PNR_ARR) >> 8; |
| 1333 | if (packet_no & 0x80) { |
| 1334 | /* If not, there is a hardware problem! Likely an ejected card. */ |
| 1335 | printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation" |
| 1336 | " failed, status %#2.2x.\n", dev->name, packet_no); |
| 1337 | dev_kfree_skb_irq(skb); |
| 1338 | smc->saved_skb = NULL; |
| 1339 | netif_start_queue(dev); |
| 1340 | return; |
| 1341 | } |
| 1342 | |
| 1343 | smc->stats.tx_bytes += skb->len; |
| 1344 | /* The card should use the just-allocated buffer. */ |
| 1345 | outw(packet_no, ioaddr + PNR_ARR); |
| 1346 | /* point to the beginning of the packet */ |
| 1347 | outw(PTR_AUTOINC , ioaddr + POINTER); |
| 1348 | |
| 1349 | /* Send the packet length (+6 for status, length and ctl byte) |
| 1350 | and the status word (set to zeros). */ |
| 1351 | { |
| 1352 | u_char *buf = skb->data; |
| 1353 | u_int length = skb->len; /* The chip will pad to ethernet min. */ |
| 1354 | |
| 1355 | DEBUG(2, "%s: Trying to xmit packet of length %d.\n", |
| 1356 | dev->name, length); |
| 1357 | |
| 1358 | /* send the packet length: +6 for status word, length, and ctl */ |
| 1359 | outw(0, ioaddr + DATA_1); |
| 1360 | outw(length + 6, ioaddr + DATA_1); |
| 1361 | outsw(ioaddr + DATA_1, buf, length >> 1); |
| 1362 | |
| 1363 | /* The odd last byte, if there is one, goes in the control word. */ |
| 1364 | outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1); |
| 1365 | } |
| 1366 | |
| 1367 | /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */ |
| 1368 | outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) | |
| 1369 | (inw(ioaddr + INTERRUPT) & 0xff00), |
| 1370 | ioaddr + INTERRUPT); |
| 1371 | |
| 1372 | /* The chip does the rest of the work. */ |
| 1373 | outw(MC_ENQUEUE , ioaddr + MMU_CMD); |
| 1374 | |
| 1375 | smc->saved_skb = NULL; |
| 1376 | dev_kfree_skb_irq(skb); |
| 1377 | dev->trans_start = jiffies; |
| 1378 | netif_start_queue(dev); |
| 1379 | return; |
| 1380 | } |
| 1381 | |
| 1382 | /*====================================================================*/ |
| 1383 | |
| 1384 | static void smc_tx_timeout(struct net_device *dev) |
| 1385 | { |
| 1386 | struct smc_private *smc = netdev_priv(dev); |
| 1387 | kio_addr_t ioaddr = dev->base_addr; |
| 1388 | |
| 1389 | printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, " |
| 1390 | "Tx_status %2.2x status %4.4x.\n", |
| 1391 | dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2)); |
| 1392 | smc->stats.tx_errors++; |
| 1393 | smc_reset(dev); |
| 1394 | dev->trans_start = jiffies; |
| 1395 | smc->saved_skb = NULL; |
| 1396 | netif_wake_queue(dev); |
| 1397 | } |
| 1398 | |
| 1399 | static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 1400 | { |
| 1401 | struct smc_private *smc = netdev_priv(dev); |
| 1402 | kio_addr_t ioaddr = dev->base_addr; |
| 1403 | u_short num_pages; |
| 1404 | short time_out, ir; |
| 1405 | |
| 1406 | netif_stop_queue(dev); |
| 1407 | |
| 1408 | DEBUG(2, "%s: smc_start_xmit(length = %d) called," |
| 1409 | " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2)); |
| 1410 | |
| 1411 | if (smc->saved_skb) { |
| 1412 | /* THIS SHOULD NEVER HAPPEN. */ |
| 1413 | smc->stats.tx_aborted_errors++; |
| 1414 | printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n", |
| 1415 | dev->name); |
| 1416 | return 1; |
| 1417 | } |
| 1418 | smc->saved_skb = skb; |
| 1419 | |
| 1420 | num_pages = skb->len >> 8; |
| 1421 | |
| 1422 | if (num_pages > 7) { |
| 1423 | printk(KERN_ERR "%s: Far too big packet error.\n", dev->name); |
| 1424 | dev_kfree_skb (skb); |
| 1425 | smc->saved_skb = NULL; |
| 1426 | smc->stats.tx_dropped++; |
| 1427 | return 0; /* Do not re-queue this packet. */ |
| 1428 | } |
| 1429 | /* A packet is now waiting. */ |
| 1430 | smc->packets_waiting++; |
| 1431 | |
| 1432 | SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */ |
| 1433 | |
| 1434 | /* need MC_RESET to keep the memory consistent. errata? */ |
| 1435 | if (smc->rx_ovrn) { |
| 1436 | outw(MC_RESET, ioaddr + MMU_CMD); |
| 1437 | smc->rx_ovrn = 0; |
| 1438 | } |
| 1439 | |
| 1440 | /* Allocate the memory; send the packet now if we win. */ |
| 1441 | outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD); |
| 1442 | for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) { |
| 1443 | ir = inw(ioaddr+INTERRUPT); |
| 1444 | if (ir & IM_ALLOC_INT) { |
| 1445 | /* Acknowledge the interrupt, send the packet. */ |
| 1446 | outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT); |
| 1447 | smc_hardware_send_packet(dev); /* Send the packet now.. */ |
| 1448 | return 0; |
| 1449 | } |
| 1450 | } |
| 1451 | |
| 1452 | /* Otherwise defer until the Tx-space-allocated interrupt. */ |
| 1453 | DEBUG(2, "%s: memory allocation deferred.\n", dev->name); |
| 1454 | outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT); |
| 1455 | |
| 1456 | return 0; |
| 1457 | } |
| 1458 | |
| 1459 | /*====================================================================== |
| 1460 | |
| 1461 | Handle a Tx anomolous event. Entered while in Window 2. |
| 1462 | |
| 1463 | ======================================================================*/ |
| 1464 | |
| 1465 | static void smc_tx_err(struct net_device * dev) |
| 1466 | { |
| 1467 | struct smc_private *smc = netdev_priv(dev); |
| 1468 | kio_addr_t ioaddr = dev->base_addr; |
| 1469 | int saved_packet = inw(ioaddr + PNR_ARR) & 0xff; |
| 1470 | int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f; |
| 1471 | int tx_status; |
| 1472 | |
| 1473 | /* select this as the packet to read from */ |
| 1474 | outw(packet_no, ioaddr + PNR_ARR); |
| 1475 | |
| 1476 | /* read the first word from this packet */ |
| 1477 | outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER); |
| 1478 | |
| 1479 | tx_status = inw(ioaddr + DATA_1); |
| 1480 | |
| 1481 | smc->stats.tx_errors++; |
| 1482 | if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++; |
| 1483 | if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++; |
| 1484 | if (tx_status & TS_16COL) { |
| 1485 | smc->stats.tx_aborted_errors++; |
| 1486 | smc->tx_err++; |
| 1487 | } |
| 1488 | |
| 1489 | if (tx_status & TS_SUCCESS) { |
| 1490 | printk(KERN_NOTICE "%s: Successful packet caused error " |
| 1491 | "interrupt?\n", dev->name); |
| 1492 | } |
| 1493 | /* re-enable transmit */ |
| 1494 | SMC_SELECT_BANK(0); |
| 1495 | outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR); |
| 1496 | SMC_SELECT_BANK(2); |
| 1497 | |
| 1498 | outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */ |
| 1499 | |
| 1500 | /* one less packet waiting for me */ |
| 1501 | smc->packets_waiting--; |
| 1502 | |
| 1503 | outw(saved_packet, ioaddr + PNR_ARR); |
| 1504 | return; |
| 1505 | } |
| 1506 | |
| 1507 | /*====================================================================*/ |
| 1508 | |
| 1509 | static void smc_eph_irq(struct net_device *dev) |
| 1510 | { |
| 1511 | struct smc_private *smc = netdev_priv(dev); |
| 1512 | kio_addr_t ioaddr = dev->base_addr; |
| 1513 | u_short card_stats, ephs; |
| 1514 | |
| 1515 | SMC_SELECT_BANK(0); |
| 1516 | ephs = inw(ioaddr + EPH); |
| 1517 | DEBUG(2, "%s: Ethernet protocol handler interrupt, status" |
| 1518 | " %4.4x.\n", dev->name, ephs); |
| 1519 | /* Could be a counter roll-over warning: update stats. */ |
| 1520 | card_stats = inw(ioaddr + COUNTER); |
| 1521 | /* single collisions */ |
| 1522 | smc->stats.collisions += card_stats & 0xF; |
| 1523 | card_stats >>= 4; |
| 1524 | /* multiple collisions */ |
| 1525 | smc->stats.collisions += card_stats & 0xF; |
| 1526 | #if 0 /* These are for when linux supports these statistics */ |
| 1527 | card_stats >>= 4; /* deferred */ |
| 1528 | card_stats >>= 4; /* excess deferred */ |
| 1529 | #endif |
| 1530 | /* If we had a transmit error we must re-enable the transmitter. */ |
| 1531 | outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR); |
| 1532 | |
| 1533 | /* Clear a link error interrupt. */ |
| 1534 | SMC_SELECT_BANK(1); |
| 1535 | outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL); |
| 1536 | outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE, |
| 1537 | ioaddr + CONTROL); |
| 1538 | SMC_SELECT_BANK(2); |
| 1539 | } |
| 1540 | |
| 1541 | /*====================================================================*/ |
| 1542 | |
| 1543 | static irqreturn_t smc_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| 1544 | { |
| 1545 | struct net_device *dev = dev_id; |
| 1546 | struct smc_private *smc = netdev_priv(dev); |
| 1547 | kio_addr_t ioaddr; |
| 1548 | u_short saved_bank, saved_pointer, mask, status; |
| 1549 | unsigned int handled = 1; |
| 1550 | char bogus_cnt = INTR_WORK; /* Work we are willing to do. */ |
| 1551 | |
| 1552 | if (!netif_device_present(dev)) |
| 1553 | return IRQ_NONE; |
| 1554 | |
| 1555 | ioaddr = dev->base_addr; |
| 1556 | |
| 1557 | DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name, |
| 1558 | irq, ioaddr); |
| 1559 | |
| 1560 | smc->watchdog = 0; |
| 1561 | saved_bank = inw(ioaddr + BANK_SELECT); |
| 1562 | if ((saved_bank & 0xff00) != 0x3300) { |
| 1563 | /* The device does not exist -- the card could be off-line, or |
| 1564 | maybe it has been ejected. */ |
| 1565 | DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent" |
| 1566 | "/ejected device.\n", dev->name, irq); |
| 1567 | handled = 0; |
| 1568 | goto irq_done; |
| 1569 | } |
| 1570 | |
| 1571 | SMC_SELECT_BANK(2); |
| 1572 | saved_pointer = inw(ioaddr + POINTER); |
| 1573 | mask = inw(ioaddr + INTERRUPT) >> 8; |
| 1574 | /* clear all interrupts */ |
| 1575 | outw(0, ioaddr + INTERRUPT); |
| 1576 | |
| 1577 | do { /* read the status flag, and mask it */ |
| 1578 | status = inw(ioaddr + INTERRUPT) & 0xff; |
| 1579 | DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name, |
| 1580 | status, mask); |
| 1581 | if ((status & mask) == 0) { |
| 1582 | if (bogus_cnt == INTR_WORK) |
| 1583 | handled = 0; |
| 1584 | break; |
| 1585 | } |
| 1586 | if (status & IM_RCV_INT) { |
| 1587 | /* Got a packet(s). */ |
| 1588 | smc_rx(dev); |
| 1589 | } |
| 1590 | if (status & IM_TX_INT) { |
| 1591 | smc_tx_err(dev); |
| 1592 | outw(IM_TX_INT, ioaddr + INTERRUPT); |
| 1593 | } |
| 1594 | status &= mask; |
| 1595 | if (status & IM_TX_EMPTY_INT) { |
| 1596 | outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT); |
| 1597 | mask &= ~IM_TX_EMPTY_INT; |
| 1598 | smc->stats.tx_packets += smc->packets_waiting; |
| 1599 | smc->packets_waiting = 0; |
| 1600 | } |
| 1601 | if (status & IM_ALLOC_INT) { |
| 1602 | /* Clear this interrupt so it doesn't happen again */ |
| 1603 | mask &= ~IM_ALLOC_INT; |
| 1604 | |
| 1605 | smc_hardware_send_packet(dev); |
| 1606 | |
| 1607 | /* enable xmit interrupts based on this */ |
| 1608 | mask |= (IM_TX_EMPTY_INT | IM_TX_INT); |
| 1609 | |
| 1610 | /* and let the card send more packets to me */ |
| 1611 | netif_wake_queue(dev); |
| 1612 | } |
| 1613 | if (status & IM_RX_OVRN_INT) { |
| 1614 | smc->stats.rx_errors++; |
| 1615 | smc->stats.rx_fifo_errors++; |
| 1616 | if (smc->duplex) |
| 1617 | smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */ |
| 1618 | outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT); |
| 1619 | } |
| 1620 | if (status & IM_EPH_INT) |
| 1621 | smc_eph_irq(dev); |
| 1622 | } while (--bogus_cnt); |
| 1623 | |
| 1624 | DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x" |
| 1625 | " pointer %4.4x.\n", mask, saved_bank, saved_pointer); |
| 1626 | |
| 1627 | /* restore state register */ |
| 1628 | outw((mask<<8), ioaddr + INTERRUPT); |
| 1629 | outw(saved_pointer, ioaddr + POINTER); |
| 1630 | SMC_SELECT_BANK(saved_bank); |
| 1631 | |
| 1632 | DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq); |
| 1633 | |
| 1634 | irq_done: |
| 1635 | |
| 1636 | if ((smc->manfid == MANFID_OSITECH) && |
| 1637 | (smc->cardid != PRODID_OSITECH_SEVEN)) { |
| 1638 | /* Retrigger interrupt if needed */ |
| 1639 | mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR); |
| 1640 | set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR); |
| 1641 | } |
| 1642 | if (smc->manfid == MANFID_MOTOROLA) { |
| 1643 | u_char cor; |
| 1644 | cor = readb(smc->base + MOT_UART + CISREG_COR); |
| 1645 | writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR); |
| 1646 | writeb(cor, smc->base + MOT_UART + CISREG_COR); |
| 1647 | cor = readb(smc->base + MOT_LAN + CISREG_COR); |
| 1648 | writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR); |
| 1649 | writeb(cor, smc->base + MOT_LAN + CISREG_COR); |
| 1650 | } |
| 1651 | #ifdef DOES_NOT_WORK |
| 1652 | if (smc->base != NULL) { /* Megahertz MFC's */ |
| 1653 | readb(smc->base+MEGAHERTZ_ISR); |
| 1654 | readb(smc->base+MEGAHERTZ_ISR); |
| 1655 | } |
| 1656 | #endif |
| 1657 | return IRQ_RETVAL(handled); |
| 1658 | } |
| 1659 | |
| 1660 | /*====================================================================*/ |
| 1661 | |
| 1662 | static void smc_rx(struct net_device *dev) |
| 1663 | { |
| 1664 | struct smc_private *smc = netdev_priv(dev); |
| 1665 | kio_addr_t ioaddr = dev->base_addr; |
| 1666 | int rx_status; |
| 1667 | int packet_length; /* Caution: not frame length, rather words |
| 1668 | to transfer from the chip. */ |
| 1669 | |
| 1670 | /* Assertion: we are in Window 2. */ |
| 1671 | |
| 1672 | if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) { |
| 1673 | printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n", |
| 1674 | dev->name); |
| 1675 | return; |
| 1676 | } |
| 1677 | |
| 1678 | /* Reset the read pointer, and read the status and packet length. */ |
| 1679 | outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER); |
| 1680 | rx_status = inw(ioaddr + DATA_1); |
| 1681 | packet_length = inw(ioaddr + DATA_1) & 0x07ff; |
| 1682 | |
| 1683 | DEBUG(2, "%s: Receive status %4.4x length %d.\n", |
| 1684 | dev->name, rx_status, packet_length); |
| 1685 | |
| 1686 | if (!(rx_status & RS_ERRORS)) { |
| 1687 | /* do stuff to make a new packet */ |
| 1688 | struct sk_buff *skb; |
| 1689 | |
| 1690 | /* Note: packet_length adds 5 or 6 extra bytes here! */ |
| 1691 | skb = dev_alloc_skb(packet_length+2); |
| 1692 | |
| 1693 | if (skb == NULL) { |
| 1694 | DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name); |
| 1695 | smc->stats.rx_dropped++; |
| 1696 | outw(MC_RELEASE, ioaddr + MMU_CMD); |
| 1697 | return; |
| 1698 | } |
| 1699 | |
| 1700 | packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6); |
| 1701 | skb_reserve(skb, 2); |
| 1702 | insw(ioaddr+DATA_1, skb_put(skb, packet_length), |
| 1703 | (packet_length+1)>>1); |
| 1704 | skb->protocol = eth_type_trans(skb, dev); |
| 1705 | |
| 1706 | skb->dev = dev; |
| 1707 | netif_rx(skb); |
| 1708 | dev->last_rx = jiffies; |
| 1709 | smc->stats.rx_packets++; |
| 1710 | smc->stats.rx_bytes += packet_length; |
| 1711 | if (rx_status & RS_MULTICAST) |
| 1712 | smc->stats.multicast++; |
| 1713 | } else { |
| 1714 | /* error ... */ |
| 1715 | smc->stats.rx_errors++; |
| 1716 | |
| 1717 | if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++; |
| 1718 | if (rx_status & (RS_TOOSHORT | RS_TOOLONG)) |
| 1719 | smc->stats.rx_length_errors++; |
| 1720 | if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++; |
| 1721 | } |
| 1722 | /* Let the MMU free the memory of this packet. */ |
| 1723 | outw(MC_RELEASE, ioaddr + MMU_CMD); |
| 1724 | |
| 1725 | return; |
| 1726 | } |
| 1727 | |
| 1728 | /*====================================================================*/ |
| 1729 | |
| 1730 | static struct net_device_stats *smc_get_stats(struct net_device *dev) |
| 1731 | { |
| 1732 | struct smc_private *smc = netdev_priv(dev); |
| 1733 | /* Nothing to update - the 91c92 is a pretty primative chip. */ |
| 1734 | return &smc->stats; |
| 1735 | } |
| 1736 | |
| 1737 | /*====================================================================== |
| 1738 | |
| 1739 | Calculate values for the hardware multicast filter hash table. |
| 1740 | |
| 1741 | ======================================================================*/ |
| 1742 | |
| 1743 | static void fill_multicast_tbl(int count, struct dev_mc_list *addrs, |
| 1744 | u_char *multicast_table) |
| 1745 | { |
| 1746 | struct dev_mc_list *mc_addr; |
| 1747 | |
| 1748 | for (mc_addr = addrs; mc_addr && --count > 0; mc_addr = mc_addr->next) { |
| 1749 | u_int position = ether_crc(6, mc_addr->dmi_addr); |
| 1750 | #ifndef final_version /* Verify multicast address. */ |
| 1751 | if ((mc_addr->dmi_addr[0] & 1) == 0) |
| 1752 | continue; |
| 1753 | #endif |
| 1754 | multicast_table[position >> 29] |= 1 << ((position >> 26) & 7); |
| 1755 | } |
| 1756 | } |
| 1757 | |
| 1758 | /*====================================================================== |
| 1759 | |
| 1760 | Set the receive mode. |
| 1761 | |
| 1762 | This routine is used by both the protocol level to notify us of |
| 1763 | promiscuous/multicast mode changes, and by the open/reset code to |
| 1764 | initialize the Rx registers. We always set the multicast list and |
| 1765 | leave the receiver running. |
| 1766 | |
| 1767 | ======================================================================*/ |
| 1768 | |
| 1769 | static void set_rx_mode(struct net_device *dev) |
| 1770 | { |
| 1771 | kio_addr_t ioaddr = dev->base_addr; |
| 1772 | struct smc_private *smc = netdev_priv(dev); |
| 1773 | u_int multicast_table[ 2 ] = { 0, }; |
| 1774 | unsigned long flags; |
| 1775 | u_short rx_cfg_setting; |
| 1776 | |
| 1777 | if (dev->flags & IFF_PROMISC) { |
| 1778 | printk(KERN_NOTICE "%s: setting Rx mode to promiscuous.\n", dev->name); |
| 1779 | rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti; |
| 1780 | } else if (dev->flags & IFF_ALLMULTI) |
| 1781 | rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti; |
| 1782 | else { |
| 1783 | if (dev->mc_count) { |
| 1784 | fill_multicast_tbl(dev->mc_count, dev->mc_list, |
| 1785 | (u_char *)multicast_table); |
| 1786 | } |
| 1787 | rx_cfg_setting = RxStripCRC | RxEnable; |
| 1788 | } |
| 1789 | |
| 1790 | /* Load MC table and Rx setting into the chip without interrupts. */ |
| 1791 | spin_lock_irqsave(&smc->lock, flags); |
| 1792 | SMC_SELECT_BANK(3); |
| 1793 | outl(multicast_table[0], ioaddr + MULTICAST0); |
| 1794 | outl(multicast_table[1], ioaddr + MULTICAST4); |
| 1795 | SMC_SELECT_BANK(0); |
| 1796 | outw(rx_cfg_setting, ioaddr + RCR); |
| 1797 | SMC_SELECT_BANK(2); |
| 1798 | spin_unlock_irqrestore(&smc->lock, flags); |
| 1799 | |
| 1800 | return; |
| 1801 | } |
| 1802 | |
| 1803 | /*====================================================================== |
| 1804 | |
| 1805 | Senses when a card's config changes. Here, it's coax or TP. |
| 1806 | |
| 1807 | ======================================================================*/ |
| 1808 | |
| 1809 | static int s9k_config(struct net_device *dev, struct ifmap *map) |
| 1810 | { |
| 1811 | struct smc_private *smc = netdev_priv(dev); |
| 1812 | if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { |
| 1813 | if (smc->cfg & CFG_MII_SELECT) |
| 1814 | return -EOPNOTSUPP; |
| 1815 | else if (map->port > 2) |
| 1816 | return -EINVAL; |
| 1817 | dev->if_port = map->port; |
| 1818 | printk(KERN_INFO "%s: switched to %s port\n", |
| 1819 | dev->name, if_names[dev->if_port]); |
| 1820 | smc_reset(dev); |
| 1821 | } |
| 1822 | return 0; |
| 1823 | } |
| 1824 | |
| 1825 | /*====================================================================== |
| 1826 | |
| 1827 | Reset the chip, reloading every register that might be corrupted. |
| 1828 | |
| 1829 | ======================================================================*/ |
| 1830 | |
| 1831 | /* |
| 1832 | Set transceiver type, perhaps to something other than what the user |
| 1833 | specified in dev->if_port. |
| 1834 | */ |
| 1835 | static void smc_set_xcvr(struct net_device *dev, int if_port) |
| 1836 | { |
| 1837 | struct smc_private *smc = netdev_priv(dev); |
| 1838 | kio_addr_t ioaddr = dev->base_addr; |
| 1839 | u_short saved_bank; |
| 1840 | |
| 1841 | saved_bank = inw(ioaddr + BANK_SELECT); |
| 1842 | SMC_SELECT_BANK(1); |
| 1843 | if (if_port == 2) { |
| 1844 | outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG); |
| 1845 | if ((smc->manfid == MANFID_OSITECH) && |
| 1846 | (smc->cardid != PRODID_OSITECH_SEVEN)) |
| 1847 | set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR); |
| 1848 | smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002); |
| 1849 | } else { |
| 1850 | outw(smc->cfg, ioaddr + CONFIG); |
| 1851 | if ((smc->manfid == MANFID_OSITECH) && |
| 1852 | (smc->cardid != PRODID_OSITECH_SEVEN)) |
| 1853 | mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR); |
| 1854 | smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001); |
| 1855 | } |
| 1856 | SMC_SELECT_BANK(saved_bank); |
| 1857 | } |
| 1858 | |
| 1859 | static void smc_reset(struct net_device *dev) |
| 1860 | { |
| 1861 | kio_addr_t ioaddr = dev->base_addr; |
| 1862 | struct smc_private *smc = netdev_priv(dev); |
| 1863 | int i; |
| 1864 | |
| 1865 | DEBUG(0, "%s: smc91c92 reset called.\n", dev->name); |
| 1866 | |
| 1867 | /* The first interaction must be a write to bring the chip out |
| 1868 | of sleep mode. */ |
| 1869 | SMC_SELECT_BANK(0); |
| 1870 | /* Reset the chip. */ |
| 1871 | outw(RCR_SOFTRESET, ioaddr + RCR); |
| 1872 | udelay(10); |
| 1873 | |
| 1874 | /* Clear the transmit and receive configuration registers. */ |
| 1875 | outw(RCR_CLEAR, ioaddr + RCR); |
| 1876 | outw(TCR_CLEAR, ioaddr + TCR); |
| 1877 | |
| 1878 | /* Set the Window 1 control, configuration and station addr registers. |
| 1879 | No point in writing the I/O base register ;-> */ |
| 1880 | SMC_SELECT_BANK(1); |
| 1881 | /* Automatically release succesfully transmitted packets, |
| 1882 | Accept link errors, counter and Tx error interrupts. */ |
| 1883 | outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE, |
| 1884 | ioaddr + CONTROL); |
| 1885 | smc_set_xcvr(dev, dev->if_port); |
| 1886 | if ((smc->manfid == MANFID_OSITECH) && |
| 1887 | (smc->cardid != PRODID_OSITECH_SEVEN)) |
| 1888 | outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) | |
| 1889 | (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00), |
| 1890 | ioaddr - 0x10 + OSITECH_AUI_PWR); |
| 1891 | |
| 1892 | /* Fill in the physical address. The databook is wrong about the order! */ |
| 1893 | for (i = 0; i < 6; i += 2) |
| 1894 | outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i], |
| 1895 | ioaddr + ADDR0 + i); |
| 1896 | |
| 1897 | /* Reset the MMU */ |
| 1898 | SMC_SELECT_BANK(2); |
| 1899 | outw(MC_RESET, ioaddr + MMU_CMD); |
| 1900 | outw(0, ioaddr + INTERRUPT); |
| 1901 | |
| 1902 | /* Re-enable the chip. */ |
| 1903 | SMC_SELECT_BANK(0); |
| 1904 | outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) | |
| 1905 | TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR); |
| 1906 | set_rx_mode(dev); |
| 1907 | |
| 1908 | if (smc->cfg & CFG_MII_SELECT) { |
| 1909 | SMC_SELECT_BANK(3); |
| 1910 | |
| 1911 | /* Reset MII */ |
| 1912 | mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000); |
| 1913 | |
| 1914 | /* Advertise 100F, 100H, 10F, 10H */ |
| 1915 | mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1); |
| 1916 | |
| 1917 | /* Restart MII autonegotiation */ |
| 1918 | mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000); |
| 1919 | mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200); |
| 1920 | } |
| 1921 | |
| 1922 | /* Enable interrupts. */ |
| 1923 | SMC_SELECT_BANK(2); |
| 1924 | outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8, |
| 1925 | ioaddr + INTERRUPT); |
| 1926 | } |
| 1927 | |
| 1928 | /*====================================================================== |
| 1929 | |
| 1930 | Media selection timer routine |
| 1931 | |
| 1932 | ======================================================================*/ |
| 1933 | |
| 1934 | static void media_check(u_long arg) |
| 1935 | { |
| 1936 | struct net_device *dev = (struct net_device *) arg; |
| 1937 | struct smc_private *smc = netdev_priv(dev); |
| 1938 | kio_addr_t ioaddr = dev->base_addr; |
| 1939 | u_short i, media, saved_bank; |
| 1940 | u_short link; |
| 1941 | |
| 1942 | saved_bank = inw(ioaddr + BANK_SELECT); |
| 1943 | |
| 1944 | if (!netif_device_present(dev)) |
| 1945 | goto reschedule; |
| 1946 | |
| 1947 | SMC_SELECT_BANK(2); |
| 1948 | |
| 1949 | /* need MC_RESET to keep the memory consistent. errata? */ |
| 1950 | if (smc->rx_ovrn) { |
| 1951 | outw(MC_RESET, ioaddr + MMU_CMD); |
| 1952 | smc->rx_ovrn = 0; |
| 1953 | } |
| 1954 | i = inw(ioaddr + INTERRUPT); |
| 1955 | SMC_SELECT_BANK(0); |
| 1956 | media = inw(ioaddr + EPH) & EPH_LINK_OK; |
| 1957 | SMC_SELECT_BANK(1); |
| 1958 | media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1; |
| 1959 | |
| 1960 | /* Check for pending interrupt with watchdog flag set: with |
| 1961 | this, we can limp along even if the interrupt is blocked */ |
| 1962 | if (smc->watchdog++ && ((i>>8) & i)) { |
| 1963 | if (!smc->fast_poll) |
| 1964 | printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name); |
| 1965 | smc_interrupt(dev->irq, smc, NULL); |
| 1966 | smc->fast_poll = HZ; |
| 1967 | } |
| 1968 | if (smc->fast_poll) { |
| 1969 | smc->fast_poll--; |
| 1970 | smc->media.expires = jiffies + HZ/100; |
| 1971 | add_timer(&smc->media); |
| 1972 | SMC_SELECT_BANK(saved_bank); |
| 1973 | return; |
| 1974 | } |
| 1975 | |
| 1976 | if (smc->cfg & CFG_MII_SELECT) { |
| 1977 | if (smc->mii_if.phy_id < 0) |
| 1978 | goto reschedule; |
| 1979 | |
| 1980 | SMC_SELECT_BANK(3); |
| 1981 | link = mdio_read(dev, smc->mii_if.phy_id, 1); |
| 1982 | if (!link || (link == 0xffff)) { |
| 1983 | printk(KERN_INFO "%s: MII is missing!\n", dev->name); |
| 1984 | smc->mii_if.phy_id = -1; |
| 1985 | goto reschedule; |
| 1986 | } |
| 1987 | |
| 1988 | link &= 0x0004; |
| 1989 | if (link != smc->link_status) { |
| 1990 | u_short p = mdio_read(dev, smc->mii_if.phy_id, 5); |
| 1991 | printk(KERN_INFO "%s: %s link beat\n", dev->name, |
| 1992 | (link) ? "found" : "lost"); |
| 1993 | smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40)) |
| 1994 | ? TCR_FDUPLX : 0); |
| 1995 | if (link) { |
| 1996 | printk(KERN_INFO "%s: autonegotiation complete: " |
| 1997 | "%sbaseT-%cD selected\n", dev->name, |
| 1998 | ((p & 0x0180) ? "100" : "10"), |
| 1999 | (smc->duplex ? 'F' : 'H')); |
| 2000 | } |
| 2001 | SMC_SELECT_BANK(0); |
| 2002 | outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR); |
| 2003 | smc->link_status = link; |
| 2004 | } |
| 2005 | goto reschedule; |
| 2006 | } |
| 2007 | |
| 2008 | /* Ignore collisions unless we've had no rx's recently */ |
| 2009 | if (jiffies - dev->last_rx > HZ) { |
| 2010 | if (smc->tx_err || (smc->media_status & EPH_16COL)) |
| 2011 | media |= EPH_16COL; |
| 2012 | } |
| 2013 | smc->tx_err = 0; |
| 2014 | |
| 2015 | if (media != smc->media_status) { |
| 2016 | if ((media & smc->media_status & 1) && |
| 2017 | ((smc->media_status ^ media) & EPH_LINK_OK)) |
| 2018 | printk(KERN_INFO "%s: %s link beat\n", dev->name, |
| 2019 | (smc->media_status & EPH_LINK_OK ? "lost" : "found")); |
| 2020 | else if ((media & smc->media_status & 2) && |
| 2021 | ((smc->media_status ^ media) & EPH_16COL)) |
| 2022 | printk(KERN_INFO "%s: coax cable %s\n", dev->name, |
| 2023 | (media & EPH_16COL ? "problem" : "ok")); |
| 2024 | if (dev->if_port == 0) { |
| 2025 | if (media & 1) { |
| 2026 | if (media & EPH_LINK_OK) |
| 2027 | printk(KERN_INFO "%s: flipped to 10baseT\n", |
| 2028 | dev->name); |
| 2029 | else |
| 2030 | smc_set_xcvr(dev, 2); |
| 2031 | } else { |
| 2032 | if (media & EPH_16COL) |
| 2033 | smc_set_xcvr(dev, 1); |
| 2034 | else |
| 2035 | printk(KERN_INFO "%s: flipped to 10base2\n", |
| 2036 | dev->name); |
| 2037 | } |
| 2038 | } |
| 2039 | smc->media_status = media; |
| 2040 | } |
| 2041 | |
| 2042 | reschedule: |
| 2043 | smc->media.expires = jiffies + HZ; |
| 2044 | add_timer(&smc->media); |
| 2045 | SMC_SELECT_BANK(saved_bank); |
| 2046 | } |
| 2047 | |
| 2048 | static int smc_link_ok(struct net_device *dev) |
| 2049 | { |
| 2050 | kio_addr_t ioaddr = dev->base_addr; |
| 2051 | struct smc_private *smc = netdev_priv(dev); |
| 2052 | |
| 2053 | if (smc->cfg & CFG_MII_SELECT) { |
| 2054 | return mii_link_ok(&smc->mii_if); |
| 2055 | } else { |
| 2056 | SMC_SELECT_BANK(0); |
| 2057 | return inw(ioaddr + EPH) & EPH_LINK_OK; |
| 2058 | } |
| 2059 | } |
| 2060 | |
| 2061 | static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 2062 | { |
| 2063 | u16 tmp; |
| 2064 | kio_addr_t ioaddr = dev->base_addr; |
| 2065 | |
| 2066 | ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI | |
| 2067 | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full); |
| 2068 | |
| 2069 | SMC_SELECT_BANK(1); |
| 2070 | tmp = inw(ioaddr + CONFIG); |
| 2071 | ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP; |
| 2072 | ecmd->transceiver = XCVR_INTERNAL; |
| 2073 | ecmd->speed = SPEED_10; |
| 2074 | ecmd->phy_address = ioaddr + MGMT; |
| 2075 | |
| 2076 | SMC_SELECT_BANK(0); |
| 2077 | tmp = inw(ioaddr + TCR); |
| 2078 | ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF; |
| 2079 | |
| 2080 | return 0; |
| 2081 | } |
| 2082 | |
| 2083 | static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 2084 | { |
| 2085 | u16 tmp; |
| 2086 | kio_addr_t ioaddr = dev->base_addr; |
| 2087 | |
| 2088 | if (ecmd->speed != SPEED_10) |
| 2089 | return -EINVAL; |
| 2090 | if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) |
| 2091 | return -EINVAL; |
| 2092 | if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI) |
| 2093 | return -EINVAL; |
| 2094 | if (ecmd->transceiver != XCVR_INTERNAL) |
| 2095 | return -EINVAL; |
| 2096 | |
| 2097 | if (ecmd->port == PORT_AUI) |
| 2098 | smc_set_xcvr(dev, 1); |
| 2099 | else |
| 2100 | smc_set_xcvr(dev, 0); |
| 2101 | |
| 2102 | SMC_SELECT_BANK(0); |
| 2103 | tmp = inw(ioaddr + TCR); |
| 2104 | if (ecmd->duplex == DUPLEX_FULL) |
| 2105 | tmp |= TCR_FDUPLX; |
| 2106 | else |
| 2107 | tmp &= ~TCR_FDUPLX; |
| 2108 | outw(tmp, ioaddr + TCR); |
| 2109 | |
| 2110 | return 0; |
| 2111 | } |
| 2112 | |
| 2113 | static int check_if_running(struct net_device *dev) |
| 2114 | { |
| 2115 | if (!netif_running(dev)) |
| 2116 | return -EINVAL; |
| 2117 | return 0; |
| 2118 | } |
| 2119 | |
| 2120 | static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 2121 | { |
| 2122 | strcpy(info->driver, DRV_NAME); |
| 2123 | strcpy(info->version, DRV_VERSION); |
| 2124 | } |
| 2125 | |
| 2126 | static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 2127 | { |
| 2128 | struct smc_private *smc = netdev_priv(dev); |
| 2129 | kio_addr_t ioaddr = dev->base_addr; |
| 2130 | u16 saved_bank = inw(ioaddr + BANK_SELECT); |
| 2131 | int ret; |
| 2132 | |
| 2133 | SMC_SELECT_BANK(3); |
| 2134 | spin_lock_irq(&smc->lock); |
| 2135 | if (smc->cfg & CFG_MII_SELECT) |
| 2136 | ret = mii_ethtool_gset(&smc->mii_if, ecmd); |
| 2137 | else |
| 2138 | ret = smc_netdev_get_ecmd(dev, ecmd); |
| 2139 | spin_unlock_irq(&smc->lock); |
| 2140 | SMC_SELECT_BANK(saved_bank); |
| 2141 | return ret; |
| 2142 | } |
| 2143 | |
| 2144 | static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 2145 | { |
| 2146 | struct smc_private *smc = netdev_priv(dev); |
| 2147 | kio_addr_t ioaddr = dev->base_addr; |
| 2148 | u16 saved_bank = inw(ioaddr + BANK_SELECT); |
| 2149 | int ret; |
| 2150 | |
| 2151 | SMC_SELECT_BANK(3); |
| 2152 | spin_lock_irq(&smc->lock); |
| 2153 | if (smc->cfg & CFG_MII_SELECT) |
| 2154 | ret = mii_ethtool_sset(&smc->mii_if, ecmd); |
| 2155 | else |
| 2156 | ret = smc_netdev_set_ecmd(dev, ecmd); |
| 2157 | spin_unlock_irq(&smc->lock); |
| 2158 | SMC_SELECT_BANK(saved_bank); |
| 2159 | return ret; |
| 2160 | } |
| 2161 | |
| 2162 | static u32 smc_get_link(struct net_device *dev) |
| 2163 | { |
| 2164 | struct smc_private *smc = netdev_priv(dev); |
| 2165 | kio_addr_t ioaddr = dev->base_addr; |
| 2166 | u16 saved_bank = inw(ioaddr + BANK_SELECT); |
| 2167 | u32 ret; |
| 2168 | |
| 2169 | SMC_SELECT_BANK(3); |
| 2170 | spin_lock_irq(&smc->lock); |
| 2171 | ret = smc_link_ok(dev); |
| 2172 | spin_unlock_irq(&smc->lock); |
| 2173 | SMC_SELECT_BANK(saved_bank); |
| 2174 | return ret; |
| 2175 | } |
| 2176 | |
| 2177 | #ifdef PCMCIA_DEBUG |
| 2178 | static u32 smc_get_msglevel(struct net_device *dev) |
| 2179 | { |
| 2180 | return pc_debug; |
| 2181 | } |
| 2182 | |
| 2183 | static void smc_set_msglevel(struct net_device *dev, u32 val) |
| 2184 | { |
| 2185 | pc_debug = val; |
| 2186 | } |
| 2187 | #endif |
| 2188 | |
| 2189 | static int smc_nway_reset(struct net_device *dev) |
| 2190 | { |
| 2191 | struct smc_private *smc = netdev_priv(dev); |
| 2192 | if (smc->cfg & CFG_MII_SELECT) { |
| 2193 | kio_addr_t ioaddr = dev->base_addr; |
| 2194 | u16 saved_bank = inw(ioaddr + BANK_SELECT); |
| 2195 | int res; |
| 2196 | |
| 2197 | SMC_SELECT_BANK(3); |
| 2198 | res = mii_nway_restart(&smc->mii_if); |
| 2199 | SMC_SELECT_BANK(saved_bank); |
| 2200 | |
| 2201 | return res; |
| 2202 | } else |
| 2203 | return -EOPNOTSUPP; |
| 2204 | } |
| 2205 | |
| 2206 | static struct ethtool_ops ethtool_ops = { |
| 2207 | .begin = check_if_running, |
| 2208 | .get_drvinfo = smc_get_drvinfo, |
| 2209 | .get_settings = smc_get_settings, |
| 2210 | .set_settings = smc_set_settings, |
| 2211 | .get_link = smc_get_link, |
| 2212 | #ifdef PCMCIA_DEBUG |
| 2213 | .get_msglevel = smc_get_msglevel, |
| 2214 | .set_msglevel = smc_set_msglevel, |
| 2215 | #endif |
| 2216 | .nway_reset = smc_nway_reset, |
| 2217 | }; |
| 2218 | |
| 2219 | static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) |
| 2220 | { |
| 2221 | struct smc_private *smc = netdev_priv(dev); |
| 2222 | struct mii_ioctl_data *mii = if_mii(rq); |
| 2223 | int rc = 0; |
| 2224 | u16 saved_bank; |
| 2225 | kio_addr_t ioaddr = dev->base_addr; |
| 2226 | |
| 2227 | if (!netif_running(dev)) |
| 2228 | return -EINVAL; |
| 2229 | |
| 2230 | spin_lock_irq(&smc->lock); |
| 2231 | saved_bank = inw(ioaddr + BANK_SELECT); |
| 2232 | SMC_SELECT_BANK(3); |
| 2233 | rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL); |
| 2234 | SMC_SELECT_BANK(saved_bank); |
| 2235 | spin_unlock_irq(&smc->lock); |
| 2236 | return rc; |
| 2237 | } |
| 2238 | |
| 2239 | static struct pcmcia_driver smc91c92_cs_driver = { |
| 2240 | .owner = THIS_MODULE, |
| 2241 | .drv = { |
| 2242 | .name = "smc91c92_cs", |
| 2243 | }, |
| 2244 | .attach = smc91c92_attach, |
| 2245 | .detach = smc91c92_detach, |
| 2246 | }; |
| 2247 | |
| 2248 | static int __init init_smc91c92_cs(void) |
| 2249 | { |
| 2250 | return pcmcia_register_driver(&smc91c92_cs_driver); |
| 2251 | } |
| 2252 | |
| 2253 | static void __exit exit_smc91c92_cs(void) |
| 2254 | { |
| 2255 | pcmcia_unregister_driver(&smc91c92_cs_driver); |
| 2256 | BUG_ON(dev_list != NULL); |
| 2257 | } |
| 2258 | |
| 2259 | module_init(init_smc91c92_cs); |
| 2260 | module_exit(exit_smc91c92_cs); |