Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*====================================================================== |
| 2 | |
| 3 | A Sedlbauer PCMCIA client driver |
| 4 | |
| 5 | This driver is for the Sedlbauer Speed Star and Speed Star II, |
| 6 | which are ISDN PCMCIA Cards. |
| 7 | |
| 8 | The contents of this file are subject to the Mozilla Public |
| 9 | License Version 1.1 (the "License"); you may not use this file |
| 10 | except in compliance with the License. You may obtain a copy of |
| 11 | the License at http://www.mozilla.org/MPL/ |
| 12 | |
| 13 | Software distributed under the License is distributed on an "AS |
| 14 | IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or |
| 15 | implied. See the License for the specific language governing |
| 16 | rights and limitations under the License. |
| 17 | |
| 18 | The initial developer of the original code is David A. Hinds |
| 19 | <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
| 20 | are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
| 21 | |
| 22 | Modifications from dummy_cs.c are Copyright (C) 1999-2001 Marcus Niemann |
| 23 | <maniemann@users.sourceforge.net>. All Rights Reserved. |
| 24 | |
| 25 | Alternatively, the contents of this file may be used under the |
| 26 | terms of the GNU General Public License version 2 (the "GPL"), in |
| 27 | which case the provisions of the GPL are applicable instead of the |
| 28 | above. If you wish to allow the use of your version of this file |
| 29 | only under the terms of the GPL and not to allow others to use |
| 30 | your version of this file under the MPL, indicate your decision |
| 31 | by deleting the provisions above and replace them with the notice |
| 32 | and other provisions required by the GPL. If you do not delete |
| 33 | the provisions above, a recipient may use your version of this |
| 34 | file under either the MPL or the GPL. |
| 35 | |
| 36 | ======================================================================*/ |
| 37 | |
| 38 | #include <linux/kernel.h> |
| 39 | #include <linux/module.h> |
| 40 | #include <linux/init.h> |
| 41 | #include <linux/sched.h> |
| 42 | #include <linux/ptrace.h> |
| 43 | #include <linux/slab.h> |
| 44 | #include <linux/string.h> |
| 45 | #include <linux/timer.h> |
| 46 | #include <linux/ioport.h> |
| 47 | #include <asm/io.h> |
| 48 | #include <asm/system.h> |
| 49 | |
| 50 | #include <pcmcia/version.h> |
| 51 | #include <pcmcia/cs_types.h> |
| 52 | #include <pcmcia/cs.h> |
| 53 | #include <pcmcia/cistpl.h> |
| 54 | #include <pcmcia/cisreg.h> |
| 55 | #include <pcmcia/ds.h> |
| 56 | #include "hisax_cfg.h" |
| 57 | |
| 58 | MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Sedlbauer cards"); |
| 59 | MODULE_AUTHOR("Marcus Niemann"); |
| 60 | MODULE_LICENSE("Dual MPL/GPL"); |
| 61 | |
| 62 | /* |
| 63 | All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If |
| 64 | you do not define PCMCIA_DEBUG at all, all the debug code will be |
| 65 | left out. If you compile with PCMCIA_DEBUG=0, the debug code will |
| 66 | be present but disabled -- but it can then be enabled for specific |
| 67 | modules at load time with a 'pc_debug=#' option to insmod. |
| 68 | */ |
| 69 | |
| 70 | #ifdef PCMCIA_DEBUG |
| 71 | static int pc_debug = PCMCIA_DEBUG; |
| 72 | module_param(pc_debug, int, 0); |
| 73 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args); |
| 74 | static char *version = |
| 75 | "sedlbauer_cs.c 1.1a 2001/01/28 15:04:04 (M.Niemann)"; |
| 76 | #else |
| 77 | #define DEBUG(n, args...) |
| 78 | #endif |
| 79 | |
| 80 | |
| 81 | /*====================================================================*/ |
| 82 | |
| 83 | /* Parameters that can be set with 'insmod' */ |
| 84 | |
| 85 | static int protocol = 2; /* EURO-ISDN Default */ |
| 86 | module_param(protocol, int, 0); |
| 87 | |
| 88 | /*====================================================================*/ |
| 89 | |
| 90 | /* |
| 91 | The event() function is this driver's Card Services event handler. |
| 92 | It will be called by Card Services when an appropriate card status |
| 93 | event is received. The config() and release() entry points are |
| 94 | used to configure or release a socket, in response to card |
| 95 | insertion and ejection events. They are invoked from the sedlbauer |
| 96 | event handler. |
| 97 | */ |
| 98 | |
| 99 | static void sedlbauer_config(dev_link_t *link); |
| 100 | static void sedlbauer_release(dev_link_t *link); |
| 101 | static int sedlbauer_event(event_t event, int priority, |
| 102 | event_callback_args_t *args); |
| 103 | |
| 104 | /* |
| 105 | The attach() and detach() entry points are used to create and destroy |
| 106 | "instances" of the driver, where each instance represents everything |
| 107 | needed to manage one actual PCMCIA card. |
| 108 | */ |
| 109 | |
| 110 | static dev_link_t *sedlbauer_attach(void); |
| 111 | static void sedlbauer_detach(dev_link_t *); |
| 112 | |
| 113 | /* |
| 114 | You'll also need to prototype all the functions that will actually |
| 115 | be used to talk to your device. See 'memory_cs' for a good example |
| 116 | of a fully self-sufficient driver; the other drivers rely more or |
| 117 | less on other parts of the kernel. |
| 118 | */ |
| 119 | |
| 120 | /* |
| 121 | The dev_info variable is the "key" that is used to match up this |
| 122 | device driver with appropriate cards, through the card configuration |
| 123 | database. |
| 124 | */ |
| 125 | |
| 126 | static dev_info_t dev_info = "sedlbauer_cs"; |
| 127 | |
| 128 | /* |
| 129 | A linked list of "instances" of the sedlbauer device. Each actual |
| 130 | PCMCIA card corresponds to one device instance, and is described |
| 131 | by one dev_link_t structure (defined in ds.h). |
| 132 | |
| 133 | You may not want to use a linked list for this -- for example, the |
| 134 | memory card driver uses an array of dev_link_t pointers, where minor |
| 135 | device numbers are used to derive the corresponding array index. |
| 136 | */ |
| 137 | |
| 138 | static dev_link_t *dev_list = NULL; |
| 139 | |
| 140 | /* |
| 141 | A dev_link_t structure has fields for most things that are needed |
| 142 | to keep track of a socket, but there will usually be some device |
| 143 | specific information that also needs to be kept track of. The |
| 144 | 'priv' pointer in a dev_link_t structure can be used to point to |
| 145 | a device-specific private data structure, like this. |
| 146 | |
| 147 | To simplify the data structure handling, we actually include the |
| 148 | dev_link_t structure in the device's private data structure. |
| 149 | |
| 150 | A driver needs to provide a dev_node_t structure for each device |
| 151 | on a card. In some cases, there is only one device per card (for |
| 152 | example, ethernet cards, modems). In other cases, there may be |
| 153 | many actual or logical devices (SCSI adapters, memory cards with |
| 154 | multiple partitions). The dev_node_t structures need to be kept |
| 155 | in a linked list starting at the 'dev' field of a dev_link_t |
| 156 | structure. We allocate them in the card's private data structure, |
| 157 | because they generally shouldn't be allocated dynamically. |
| 158 | |
| 159 | In this case, we also provide a flag to indicate if a device is |
| 160 | "stopped" due to a power management event, or card ejection. The |
| 161 | device IO routines can use a flag like this to throttle IO to a |
| 162 | card that is not ready to accept it. |
| 163 | */ |
| 164 | |
| 165 | typedef struct local_info_t { |
| 166 | dev_link_t link; |
| 167 | dev_node_t node; |
| 168 | int stop; |
| 169 | int cardnr; |
| 170 | } local_info_t; |
| 171 | |
| 172 | /*====================================================================== |
| 173 | |
| 174 | sedlbauer_attach() creates an "instance" of the driver, allocating |
| 175 | local data structures for one device. The device is registered |
| 176 | with Card Services. |
| 177 | |
| 178 | The dev_link structure is initialized, but we don't actually |
| 179 | configure the card at this point -- we wait until we receive a |
| 180 | card insertion event. |
| 181 | |
| 182 | ======================================================================*/ |
| 183 | |
| 184 | static dev_link_t *sedlbauer_attach(void) |
| 185 | { |
| 186 | local_info_t *local; |
| 187 | dev_link_t *link; |
| 188 | client_reg_t client_reg; |
| 189 | int ret; |
| 190 | |
| 191 | DEBUG(0, "sedlbauer_attach()\n"); |
| 192 | |
| 193 | /* Allocate space for private device-specific data */ |
| 194 | local = kmalloc(sizeof(local_info_t), GFP_KERNEL); |
| 195 | if (!local) return NULL; |
| 196 | memset(local, 0, sizeof(local_info_t)); |
| 197 | local->cardnr = -1; |
| 198 | link = &local->link; link->priv = local; |
| 199 | |
| 200 | /* Interrupt setup */ |
| 201 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; |
| 202 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 203 | link->irq.Handler = NULL; |
| 204 | |
| 205 | /* |
| 206 | General socket configuration defaults can go here. In this |
| 207 | client, we assume very little, and rely on the CIS for almost |
| 208 | everything. In most clients, many details (i.e., number, sizes, |
| 209 | and attributes of IO windows) are fixed by the nature of the |
| 210 | device, and can be hard-wired here. |
| 211 | */ |
| 212 | |
| 213 | /* from old sedl_cs |
| 214 | */ |
| 215 | /* The io structure describes IO port mapping */ |
| 216 | link->io.NumPorts1 = 8; |
| 217 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 218 | link->io.IOAddrLines = 3; |
| 219 | |
| 220 | |
| 221 | link->conf.Attributes = 0; |
| 222 | link->conf.Vcc = 50; |
| 223 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 224 | |
| 225 | /* Register with Card Services */ |
| 226 | link->next = dev_list; |
| 227 | dev_list = link; |
| 228 | client_reg.dev_info = &dev_info; |
| 229 | client_reg.EventMask = |
| 230 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | |
| 231 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | |
| 232 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; |
| 233 | client_reg.event_handler = &sedlbauer_event; |
| 234 | client_reg.Version = 0x0210; |
| 235 | client_reg.event_callback_args.client_data = link; |
| 236 | ret = pcmcia_register_client(&link->handle, &client_reg); |
| 237 | if (ret != CS_SUCCESS) { |
| 238 | cs_error(link->handle, RegisterClient, ret); |
| 239 | sedlbauer_detach(link); |
| 240 | return NULL; |
| 241 | } |
| 242 | |
| 243 | return link; |
| 244 | } /* sedlbauer_attach */ |
| 245 | |
| 246 | /*====================================================================== |
| 247 | |
| 248 | This deletes a driver "instance". The device is de-registered |
| 249 | with Card Services. If it has been released, all local data |
| 250 | structures are freed. Otherwise, the structures will be freed |
| 251 | when the device is released. |
| 252 | |
| 253 | ======================================================================*/ |
| 254 | |
| 255 | static void sedlbauer_detach(dev_link_t *link) |
| 256 | { |
| 257 | dev_link_t **linkp; |
| 258 | |
| 259 | DEBUG(0, "sedlbauer_detach(0x%p)\n", link); |
| 260 | |
| 261 | /* Locate device structure */ |
| 262 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) |
| 263 | if (*linkp == link) break; |
| 264 | if (*linkp == NULL) |
| 265 | return; |
| 266 | |
| 267 | /* |
| 268 | If the device is currently configured and active, we won't |
| 269 | actually delete it yet. Instead, it is marked so that when |
| 270 | the release() function is called, that will trigger a proper |
| 271 | detach(). |
| 272 | */ |
| 273 | if (link->state & DEV_CONFIG) { |
| 274 | #ifdef PCMCIA_DEBUG |
| 275 | printk(KERN_DEBUG "sedlbauer_cs: detach postponed, '%s' " |
| 276 | "still locked\n", link->dev->dev_name); |
| 277 | #endif |
| 278 | link->state |= DEV_STALE_LINK; |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | /* Break the link with Card Services */ |
| 283 | if (link->handle) |
| 284 | pcmcia_deregister_client(link->handle); |
| 285 | |
| 286 | /* Unlink device structure, and free it */ |
| 287 | *linkp = link->next; |
| 288 | /* This points to the parent local_info_t struct */ |
| 289 | kfree(link->priv); |
| 290 | } /* sedlbauer_detach */ |
| 291 | |
| 292 | /*====================================================================== |
| 293 | |
| 294 | sedlbauer_config() is scheduled to run after a CARD_INSERTION event |
| 295 | is received, to configure the PCMCIA socket, and to make the |
| 296 | device available to the system. |
| 297 | |
| 298 | ======================================================================*/ |
| 299 | #define CS_CHECK(fn, ret) \ |
| 300 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| 301 | |
| 302 | static void sedlbauer_config(dev_link_t *link) |
| 303 | { |
| 304 | client_handle_t handle = link->handle; |
| 305 | local_info_t *dev = link->priv; |
| 306 | tuple_t tuple; |
| 307 | cisparse_t parse; |
| 308 | int last_fn, last_ret; |
| 309 | u8 buf[64]; |
| 310 | config_info_t conf; |
| 311 | win_req_t req; |
| 312 | memreq_t map; |
| 313 | IsdnCard_t icard; |
| 314 | |
| 315 | DEBUG(0, "sedlbauer_config(0x%p)\n", link); |
| 316 | |
| 317 | /* |
| 318 | This reads the card's CONFIG tuple to find its configuration |
| 319 | registers. |
| 320 | */ |
| 321 | tuple.DesiredTuple = CISTPL_CONFIG; |
| 322 | tuple.Attributes = 0; |
| 323 | tuple.TupleData = buf; |
| 324 | tuple.TupleDataMax = sizeof(buf); |
| 325 | tuple.TupleOffset = 0; |
| 326 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| 327 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); |
| 328 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); |
| 329 | link->conf.ConfigBase = parse.config.base; |
| 330 | link->conf.Present = parse.config.rmask[0]; |
| 331 | |
| 332 | /* Configure card */ |
| 333 | link->state |= DEV_CONFIG; |
| 334 | |
| 335 | /* Look up the current Vcc */ |
| 336 | CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); |
| 337 | link->conf.Vcc = conf.Vcc; |
| 338 | |
| 339 | /* |
| 340 | In this loop, we scan the CIS for configuration table entries, |
| 341 | each of which describes a valid card configuration, including |
| 342 | voltage, IO window, memory window, and interrupt settings. |
| 343 | |
| 344 | We make no assumptions about the card to be configured: we use |
| 345 | just the information available in the CIS. In an ideal world, |
| 346 | this would work for any PCMCIA card, but it requires a complete |
| 347 | and accurate CIS. In practice, a driver usually "knows" most of |
| 348 | these things without consulting the CIS, and most client drivers |
| 349 | will only use the CIS to fill in implementation-defined details. |
| 350 | */ |
| 351 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| 352 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| 353 | while (1) { |
| 354 | cistpl_cftable_entry_t dflt = { 0 }; |
| 355 | cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); |
| 356 | if (pcmcia_get_tuple_data(handle, &tuple) != 0 || |
| 357 | pcmcia_parse_tuple(handle, &tuple, &parse) != 0) |
| 358 | goto next_entry; |
| 359 | |
| 360 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg; |
| 361 | if (cfg->index == 0) goto next_entry; |
| 362 | link->conf.ConfigIndex = cfg->index; |
| 363 | |
| 364 | /* Does this card need audio output? */ |
| 365 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { |
| 366 | link->conf.Attributes |= CONF_ENABLE_SPKR; |
| 367 | link->conf.Status = CCSR_AUDIO_ENA; |
| 368 | } |
| 369 | |
| 370 | /* Use power settings for Vcc and Vpp if present */ |
| 371 | /* Note that the CIS values need to be rescaled */ |
| 372 | if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) { |
| 373 | if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000) |
| 374 | goto next_entry; |
| 375 | } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) { |
| 376 | if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000) |
| 377 | goto next_entry; |
| 378 | } |
| 379 | |
| 380 | if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) |
| 381 | link->conf.Vpp1 = link->conf.Vpp2 = |
| 382 | cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; |
| 383 | else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM)) |
| 384 | link->conf.Vpp1 = link->conf.Vpp2 = |
| 385 | dflt.vpp1.param[CISTPL_POWER_VNOM]/10000; |
| 386 | |
| 387 | /* Do we need to allocate an interrupt? */ |
| 388 | if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) |
| 389 | link->conf.Attributes |= CONF_ENABLE_IRQ; |
| 390 | |
| 391 | /* IO window settings */ |
| 392 | link->io.NumPorts1 = link->io.NumPorts2 = 0; |
| 393 | if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { |
| 394 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; |
| 395 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| 396 | if (!(io->flags & CISTPL_IO_8BIT)) |
| 397 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| 398 | if (!(io->flags & CISTPL_IO_16BIT)) |
| 399 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 400 | /* new in dummy.cs 2001/01/28 MN |
| 401 | link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; |
| 402 | */ |
| 403 | link->io.BasePort1 = io->win[0].base; |
| 404 | link->io.NumPorts1 = io->win[0].len; |
| 405 | if (io->nwin > 1) { |
| 406 | link->io.Attributes2 = link->io.Attributes1; |
| 407 | link->io.BasePort2 = io->win[1].base; |
| 408 | link->io.NumPorts2 = io->win[1].len; |
| 409 | } |
| 410 | /* This reserves IO space but doesn't actually enable it */ |
| 411 | if (pcmcia_request_io(link->handle, &link->io) != 0) |
| 412 | goto next_entry; |
| 413 | } |
| 414 | |
| 415 | /* |
| 416 | Now set up a common memory window, if needed. There is room |
| 417 | in the dev_link_t structure for one memory window handle, |
| 418 | but if the base addresses need to be saved, or if multiple |
| 419 | windows are needed, the info should go in the private data |
| 420 | structure for this device. |
| 421 | |
| 422 | Note that the memory window base is a physical address, and |
| 423 | needs to be mapped to virtual space with ioremap() before it |
| 424 | is used. |
| 425 | */ |
| 426 | if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) { |
| 427 | cistpl_mem_t *mem = |
| 428 | (cfg->mem.nwin) ? &cfg->mem : &dflt.mem; |
| 429 | req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM; |
| 430 | req.Attributes |= WIN_ENABLE; |
| 431 | req.Base = mem->win[0].host_addr; |
| 432 | req.Size = mem->win[0].len; |
| 433 | /* new in dummy.cs 2001/01/28 MN |
| 434 | if (req.Size < 0x1000) |
| 435 | req.Size = 0x1000; |
| 436 | */ |
| 437 | req.AccessSpeed = 0; |
| 438 | if (pcmcia_request_window(&link->handle, &req, &link->win) != 0) |
| 439 | goto next_entry; |
| 440 | map.Page = 0; map.CardOffset = mem->win[0].card_addr; |
| 441 | if (pcmcia_map_mem_page(link->win, &map) != 0) |
| 442 | goto next_entry; |
| 443 | } |
| 444 | /* If we got this far, we're cool! */ |
| 445 | break; |
| 446 | |
| 447 | next_entry: |
| 448 | /* new in dummy.cs 2001/01/28 MN |
| 449 | if (link->io.NumPorts1) |
| 450 | pcmcia_release_io(link->handle, &link->io); |
| 451 | */ |
| 452 | CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple)); |
| 453 | } |
| 454 | |
| 455 | /* |
| 456 | Allocate an interrupt line. Note that this does not assign a |
| 457 | handler to the interrupt, unless the 'Handler' member of the |
| 458 | irq structure is initialized. |
| 459 | */ |
| 460 | if (link->conf.Attributes & CONF_ENABLE_IRQ) |
| 461 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); |
| 462 | |
| 463 | /* |
| 464 | This actually configures the PCMCIA socket -- setting up |
| 465 | the I/O windows and the interrupt mapping, and putting the |
| 466 | card and host interface into "Memory and IO" mode. |
| 467 | */ |
| 468 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf)); |
| 469 | |
| 470 | /* |
| 471 | At this point, the dev_node_t structure(s) need to be |
| 472 | initialized and arranged in a linked list at link->dev. |
| 473 | */ |
| 474 | sprintf(dev->node.dev_name, "sedlbauer"); |
| 475 | dev->node.major = dev->node.minor = 0; |
| 476 | link->dev = &dev->node; |
| 477 | |
| 478 | /* Finally, report what we've done */ |
| 479 | printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d", |
| 480 | dev->node.dev_name, link->conf.ConfigIndex, |
| 481 | link->conf.Vcc/10, link->conf.Vcc%10); |
| 482 | if (link->conf.Vpp1) |
| 483 | printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10); |
| 484 | if (link->conf.Attributes & CONF_ENABLE_IRQ) |
| 485 | printk(", irq %d", link->irq.AssignedIRQ); |
| 486 | if (link->io.NumPorts1) |
| 487 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, |
| 488 | link->io.BasePort1+link->io.NumPorts1-1); |
| 489 | if (link->io.NumPorts2) |
| 490 | printk(" & 0x%04x-0x%04x", link->io.BasePort2, |
| 491 | link->io.BasePort2+link->io.NumPorts2-1); |
| 492 | if (link->win) |
| 493 | printk(", mem 0x%06lx-0x%06lx", req.Base, |
| 494 | req.Base+req.Size-1); |
| 495 | printk("\n"); |
| 496 | |
| 497 | link->state &= ~DEV_CONFIG_PENDING; |
| 498 | |
| 499 | icard.para[0] = link->irq.AssignedIRQ; |
| 500 | icard.para[1] = link->io.BasePort1; |
| 501 | icard.protocol = protocol; |
| 502 | icard.typ = ISDN_CTYPE_SEDLBAUER_PCMCIA; |
| 503 | |
| 504 | last_ret = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->stop), &icard); |
| 505 | if (last_ret < 0) { |
| 506 | printk(KERN_ERR "sedlbauer_cs: failed to initialize SEDLBAUER PCMCIA %d at i/o %#x\n", |
| 507 | last_ret, link->io.BasePort1); |
| 508 | sedlbauer_release(link); |
| 509 | } else |
| 510 | ((local_info_t*)link->priv)->cardnr = last_ret; |
| 511 | |
| 512 | return; |
| 513 | |
| 514 | cs_failed: |
| 515 | cs_error(link->handle, last_fn, last_ret); |
| 516 | sedlbauer_release(link); |
| 517 | |
| 518 | } /* sedlbauer_config */ |
| 519 | |
| 520 | /*====================================================================== |
| 521 | |
| 522 | After a card is removed, sedlbauer_release() will unregister the |
| 523 | device, and release the PCMCIA configuration. If the device is |
| 524 | still open, this will be postponed until it is closed. |
| 525 | |
| 526 | ======================================================================*/ |
| 527 | |
| 528 | static void sedlbauer_release(dev_link_t *link) |
| 529 | { |
| 530 | local_info_t *local = link->priv; |
| 531 | DEBUG(0, "sedlbauer_release(0x%p)\n", link); |
| 532 | |
| 533 | if (local) { |
| 534 | if (local->cardnr >= 0) { |
| 535 | /* no unregister function with hisax */ |
| 536 | HiSax_closecard(local->cardnr); |
| 537 | } |
| 538 | } |
| 539 | /* Unlink the device chain */ |
| 540 | link->dev = NULL; |
| 541 | |
| 542 | /* |
| 543 | In a normal driver, additional code may be needed to release |
| 544 | other kernel data structures associated with this device. |
| 545 | */ |
| 546 | |
| 547 | /* Don't bother checking to see if these succeed or not */ |
| 548 | if (link->win) |
| 549 | pcmcia_release_window(link->win); |
| 550 | pcmcia_release_configuration(link->handle); |
| 551 | if (link->io.NumPorts1) |
| 552 | pcmcia_release_io(link->handle, &link->io); |
| 553 | if (link->irq.AssignedIRQ) |
| 554 | pcmcia_release_irq(link->handle, &link->irq); |
| 555 | link->state &= ~DEV_CONFIG; |
| 556 | |
| 557 | if (link->state & DEV_STALE_LINK) |
| 558 | sedlbauer_detach(link); |
| 559 | |
| 560 | } /* sedlbauer_release */ |
| 561 | |
| 562 | /*====================================================================== |
| 563 | |
| 564 | The card status event handler. Mostly, this schedules other |
| 565 | stuff to run after an event is received. |
| 566 | |
| 567 | When a CARD_REMOVAL event is received, we immediately set a |
| 568 | private flag to block future accesses to this device. All the |
| 569 | functions that actually access the device should check this flag |
| 570 | to make sure the card is still present. |
| 571 | |
| 572 | ======================================================================*/ |
| 573 | |
| 574 | static int sedlbauer_event(event_t event, int priority, |
| 575 | event_callback_args_t *args) |
| 576 | { |
| 577 | dev_link_t *link = args->client_data; |
| 578 | local_info_t *dev = link->priv; |
| 579 | |
| 580 | DEBUG(1, "sedlbauer_event(0x%06x)\n", event); |
| 581 | |
| 582 | switch (event) { |
| 583 | case CS_EVENT_CARD_REMOVAL: |
| 584 | link->state &= ~DEV_PRESENT; |
| 585 | if (link->state & DEV_CONFIG) { |
| 586 | ((local_info_t *)link->priv)->stop = 1; |
| 587 | sedlbauer_release(link); |
| 588 | } |
| 589 | break; |
| 590 | case CS_EVENT_CARD_INSERTION: |
| 591 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| 592 | sedlbauer_config(link); |
| 593 | break; |
| 594 | case CS_EVENT_PM_SUSPEND: |
| 595 | link->state |= DEV_SUSPEND; |
| 596 | /* Fall through... */ |
| 597 | case CS_EVENT_RESET_PHYSICAL: |
| 598 | /* Mark the device as stopped, to block IO until later */ |
| 599 | dev->stop = 1; |
| 600 | if (link->state & DEV_CONFIG) |
| 601 | pcmcia_release_configuration(link->handle); |
| 602 | break; |
| 603 | case CS_EVENT_PM_RESUME: |
| 604 | link->state &= ~DEV_SUSPEND; |
| 605 | /* Fall through... */ |
| 606 | case CS_EVENT_CARD_RESET: |
| 607 | if (link->state & DEV_CONFIG) |
| 608 | pcmcia_request_configuration(link->handle, &link->conf); |
| 609 | dev->stop = 0; |
| 610 | /* |
| 611 | In a normal driver, additional code may go here to restore |
| 612 | the device state and restart IO. |
| 613 | */ |
| 614 | break; |
| 615 | } |
| 616 | return 0; |
| 617 | } /* sedlbauer_event */ |
| 618 | |
| 619 | static struct pcmcia_driver sedlbauer_driver = { |
| 620 | .owner = THIS_MODULE, |
| 621 | .drv = { |
| 622 | .name = "sedlbauer_cs", |
| 623 | }, |
| 624 | .attach = sedlbauer_attach, |
| 625 | .detach = sedlbauer_detach, |
| 626 | }; |
| 627 | |
| 628 | static int __init init_sedlbauer_cs(void) |
| 629 | { |
| 630 | return pcmcia_register_driver(&sedlbauer_driver); |
| 631 | } |
| 632 | |
| 633 | static void __exit exit_sedlbauer_cs(void) |
| 634 | { |
| 635 | pcmcia_unregister_driver(&sedlbauer_driver); |
| 636 | BUG_ON(dev_list != NULL); |
| 637 | } |
| 638 | |
| 639 | module_init(init_sedlbauer_cs); |
| 640 | module_exit(exit_sedlbauer_cs); |