2 * PCMCIA 16-bit resource management functions
4 * The initial developer of the original code is David A. Hinds
5 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
6 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
8 * Copyright (C) 1999 David A. Hinds
9 * Copyright (C) 2004-2005 Dominik Brodowski
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
17 #include <linux/module.h>
18 #include <linux/kernel.h>
19 #include <linux/interrupt.h>
20 #include <linux/delay.h>
21 #include <linux/pci.h>
22 #include <linux/device.h>
23 #include <linux/netdevice.h>
25 #include <pcmcia/cs_types.h>
26 #include <pcmcia/ss.h>
27 #include <pcmcia/cs.h>
28 #include <pcmcia/cistpl.h>
29 #include <pcmcia/cisreg.h>
30 #include <pcmcia/ds.h>
32 #include "cs_internal.h"
35 /* Access speed for IO windows */
36 static int io_speed = 0;
37 module_param(io_speed, int, 0444);
40 #ifdef CONFIG_PCMCIA_PROBE
42 /* mask of IRQs already reserved by other cards, we should avoid using them */
43 static u8 pcmcia_used_irq[NR_IRQS];
49 * Special stuff for managing IO windows, because they are scarce
52 static int alloc_io_space(struct pcmcia_socket *s, u_int attr,
53 unsigned int *base, unsigned int num, u_int lines)
56 unsigned int try, align;
58 align = (*base) ? (lines ? 1<<lines : 0) : 1;
59 if (align && (align < num)) {
61 dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n",
65 while (align && (align < num)) align <<= 1;
67 if (*base & ~(align-1)) {
68 dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n",
72 if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) {
73 *base = s->io_offset | (*base & 0x0fff);
76 /* Check for an already-allocated window that must conflict with
77 * what was asked for. It is a hack because it does not catch all
78 * potential conflicts, just the most obvious ones.
80 for (i = 0; i < MAX_IO_WIN; i++)
81 if ((s->io[i].res) && *base &&
82 ((s->io[i].res->start & (align-1)) == *base))
84 for (i = 0; i < MAX_IO_WIN; i++) {
86 s->io[i].res = pcmcia_find_io_region(*base, num, align, s);
88 *base = s->io[i].res->start;
89 s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS);
94 } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS))
96 /* Try to extend top of window */
97 try = s->io[i].res->end + 1;
98 if ((*base == 0) || (*base == try))
99 if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start,
100 s->io[i].res->end + num, s) == 0) {
102 s->io[i].InUse += num;
105 /* Try to extend bottom of window */
106 try = s->io[i].res->start - num;
107 if ((*base == 0) || (*base == try))
108 if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num,
109 s->io[i].res->end, s) == 0) {
111 s->io[i].InUse += num;
115 return (i == MAX_IO_WIN);
116 } /* alloc_io_space */
119 static void release_io_space(struct pcmcia_socket *s, unsigned int base,
124 for (i = 0; i < MAX_IO_WIN; i++) {
127 if ((s->io[i].res->start <= base) &&
128 (s->io[i].res->end >= base+num-1)) {
129 s->io[i].InUse -= num;
130 /* Free the window if no one else is using it */
131 if (s->io[i].InUse == 0) {
132 release_resource(s->io[i].res);
138 } /* release_io_space */
141 /** pccard_access_configuration_register
143 * Access_configuration_register() reads and writes configuration
144 * registers in attribute memory. Memory window 0 is reserved for
145 * this and the tuple reading services.
148 int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
151 struct pcmcia_socket *s;
156 if (!p_dev || !p_dev->function_config)
160 c = p_dev->function_config;
162 if (!(c->state & CONFIG_LOCKED))
165 addr = (c->ConfigBase + reg->Offset) >> 1;
167 switch (reg->Action) {
169 pcmcia_read_cis_mem(s, 1, addr, 1, &val);
174 pcmcia_write_cis_mem(s, 1, addr, 1, &val);
181 } /* pcmcia_access_configuration_register */
182 EXPORT_SYMBOL(pcmcia_access_configuration_register);
185 /** pcmcia_get_window
187 int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle,
188 int idx, win_req_t *req)
193 if (!s || !(s->state & SOCKET_PRESENT))
195 for (w = idx; w < MAX_WIN; w++)
196 if (s->state & SOCKET_WIN_REQ(w))
201 req->Base = win->ctl.res->start;
202 req->Size = win->ctl.res->end - win->ctl.res->start + 1;
203 req->AccessSpeed = win->ctl.speed;
205 if (win->ctl.flags & MAP_ATTRIB)
206 req->Attributes |= WIN_MEMORY_TYPE_AM;
207 if (win->ctl.flags & MAP_ACTIVE)
208 req->Attributes |= WIN_ENABLE;
209 if (win->ctl.flags & MAP_16BIT)
210 req->Attributes |= WIN_DATA_WIDTH_16;
211 if (win->ctl.flags & MAP_USE_WAIT)
212 req->Attributes |= WIN_USE_WAIT;
215 } /* pcmcia_get_window */
216 EXPORT_SYMBOL(pcmcia_get_window);
219 /** pcmcia_get_mem_page
221 * Change the card address of an already open memory window.
223 int pcmcia_get_mem_page(window_handle_t win, memreq_t *req)
225 if ((win == NULL) || (win->magic != WINDOW_MAGIC))
228 req->CardOffset = win->ctl.card_start;
230 } /* pcmcia_get_mem_page */
231 EXPORT_SYMBOL(pcmcia_get_mem_page);
234 int pcmcia_map_mem_page(window_handle_t win, memreq_t *req)
236 struct pcmcia_socket *s;
237 if ((win == NULL) || (win->magic != WINDOW_MAGIC))
240 if (req->Page != 0) {
241 dev_dbg(&s->dev, "failure: requested page is zero\n");
244 win->ctl.card_start = req->CardOffset;
245 if (s->ops->set_mem_map(s, &win->ctl) != 0) {
246 dev_dbg(&s->dev, "failed to set_mem_map\n");
250 } /* pcmcia_map_mem_page */
251 EXPORT_SYMBOL(pcmcia_map_mem_page);
254 /** pcmcia_modify_configuration
256 * Modify a locked socket configuration
258 int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
261 struct pcmcia_socket *s;
265 c = p_dev->function_config;
267 if (!(s->state & SOCKET_PRESENT))
269 if (!(c->state & CONFIG_LOCKED))
272 if (mod->Attributes & CONF_IRQ_CHANGE_VALID) {
273 if (mod->Attributes & CONF_ENABLE_IRQ) {
274 c->Attributes |= CONF_ENABLE_IRQ;
275 s->socket.io_irq = s->irq.AssignedIRQ;
277 c->Attributes &= ~CONF_ENABLE_IRQ;
278 s->socket.io_irq = 0;
280 s->ops->set_socket(s, &s->socket);
283 if (mod->Attributes & CONF_VCC_CHANGE_VALID) {
284 dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
288 /* We only allow changing Vpp1 and Vpp2 to the same value */
289 if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
290 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
291 if (mod->Vpp1 != mod->Vpp2) {
292 dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
295 s->socket.Vpp = mod->Vpp1;
296 if (s->ops->set_socket(s, &s->socket)) {
297 dev_printk(KERN_WARNING, &s->dev,
298 "Unable to set VPP\n");
301 } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
302 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
303 dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
307 if (mod->Attributes & CONF_IO_CHANGE_WIDTH) {
308 pccard_io_map io_off = { 0, 0, 0, 0, 1 };
312 io_on.speed = io_speed;
313 for (i = 0; i < MAX_IO_WIN; i++) {
319 io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
320 io_on.start = s->io[i].res->start;
321 io_on.stop = s->io[i].res->end;
323 s->ops->set_io_map(s, &io_off);
325 s->ops->set_io_map(s, &io_on);
330 } /* modify_configuration */
331 EXPORT_SYMBOL(pcmcia_modify_configuration);
334 int pcmcia_release_configuration(struct pcmcia_device *p_dev)
336 pccard_io_map io = { 0, 0, 0, 0, 1 };
337 struct pcmcia_socket *s = p_dev->socket;
338 config_t *c = p_dev->function_config;
341 if (p_dev->_locked) {
343 if (--(s->lock_count) == 0) {
344 s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
346 s->socket.io_irq = 0;
347 s->ops->set_socket(s, &s->socket);
350 if (c->state & CONFIG_LOCKED) {
351 c->state &= ~CONFIG_LOCKED;
352 if (c->state & CONFIG_IO_REQ)
353 for (i = 0; i < MAX_IO_WIN; i++) {
357 if (s->io[i].Config != 0)
360 s->ops->set_io_map(s, &io);
365 } /* pcmcia_release_configuration */
368 /** pcmcia_release_io
370 * Release_io() releases the I/O ranges allocated by a client. This
371 * may be invoked some time after a card ejection has already dumped
372 * the actual socket configuration, so if the client is "stale", we
373 * don't bother checking the port ranges against the current socket
376 static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
378 struct pcmcia_socket *s = p_dev->socket;
379 config_t *c = p_dev->function_config;
386 if ((c->io.BasePort1 != req->BasePort1) ||
387 (c->io.NumPorts1 != req->NumPorts1) ||
388 (c->io.BasePort2 != req->BasePort2) ||
389 (c->io.NumPorts2 != req->NumPorts2))
392 c->state &= ~CONFIG_IO_REQ;
394 release_io_space(s, req->BasePort1, req->NumPorts1);
396 release_io_space(s, req->BasePort2, req->NumPorts2);
399 } /* pcmcia_release_io */
402 static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
404 struct pcmcia_socket *s = p_dev->socket;
405 config_t *c= p_dev->function_config;
411 if (c->state & CONFIG_LOCKED)
413 if (c->irq.Attributes != req->Attributes) {
414 dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n");
417 if (s->irq.AssignedIRQ != req->AssignedIRQ) {
418 dev_dbg(&s->dev, "IRQ must match assigned one\n");
421 if (--s->irq.Config == 0) {
422 c->state &= ~CONFIG_IRQ_REQ;
423 s->irq.AssignedIRQ = 0;
426 if (req->Attributes & IRQ_HANDLE_PRESENT) {
427 free_irq(req->AssignedIRQ, req->Instance);
430 #ifdef CONFIG_PCMCIA_PROBE
431 pcmcia_used_irq[req->AssignedIRQ]--;
435 } /* pcmcia_release_irq */
438 int pcmcia_release_window(window_handle_t win)
440 struct pcmcia_socket *s;
442 if ((win == NULL) || (win->magic != WINDOW_MAGIC))
445 if (!(win->handle->_win & CLIENT_WIN_REQ(win->index)))
448 /* Shut down memory window */
449 win->ctl.flags &= ~MAP_ACTIVE;
450 s->ops->set_mem_map(s, &win->ctl);
451 s->state &= ~SOCKET_WIN_REQ(win->index);
453 /* Release system memory */
455 release_resource(win->ctl.res);
459 win->handle->_win &= ~CLIENT_WIN_REQ(win->index);
464 } /* pcmcia_release_window */
465 EXPORT_SYMBOL(pcmcia_release_window);
468 int pcmcia_request_configuration(struct pcmcia_device *p_dev,
473 struct pcmcia_socket *s = p_dev->socket;
477 if (!(s->state & SOCKET_PRESENT))
480 if (req->IntType & INT_CARDBUS) {
481 dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
484 c = p_dev->function_config;
485 if (c->state & CONFIG_LOCKED)
488 /* Do power control. We don't allow changes in Vcc. */
489 s->socket.Vpp = req->Vpp;
490 if (s->ops->set_socket(s, &s->socket)) {
491 dev_printk(KERN_WARNING, &s->dev,
492 "Unable to set socket state\n");
496 /* Pick memory or I/O card, DMA mode, interrupt */
497 c->IntType = req->IntType;
498 c->Attributes = req->Attributes;
499 if (req->IntType & INT_MEMORY_AND_IO)
500 s->socket.flags |= SS_IOCARD;
501 if (req->IntType & INT_ZOOMED_VIDEO)
502 s->socket.flags |= SS_ZVCARD | SS_IOCARD;
503 if (req->Attributes & CONF_ENABLE_DMA)
504 s->socket.flags |= SS_DMA_MODE;
505 if (req->Attributes & CONF_ENABLE_SPKR)
506 s->socket.flags |= SS_SPKR_ENA;
507 if (req->Attributes & CONF_ENABLE_IRQ)
508 s->socket.io_irq = s->irq.AssignedIRQ;
510 s->socket.io_irq = 0;
511 s->ops->set_socket(s, &s->socket);
514 /* Set up CIS configuration registers */
515 base = c->ConfigBase = req->ConfigBase;
516 c->CardValues = req->Present;
517 if (req->Present & PRESENT_COPY) {
519 pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy);
521 if (req->Present & PRESENT_OPTION) {
522 if (s->functions == 1) {
523 c->Option = req->ConfigIndex & COR_CONFIG_MASK;
525 c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK;
526 c->Option |= COR_FUNC_ENA|COR_IREQ_ENA;
527 if (req->Present & PRESENT_IOBASE_0)
528 c->Option |= COR_ADDR_DECODE;
530 if (c->state & CONFIG_IRQ_REQ)
531 if (!(c->irq.Attributes & IRQ_FORCED_PULSE))
532 c->Option |= COR_LEVEL_REQ;
533 pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option);
536 if (req->Present & PRESENT_STATUS) {
537 c->Status = req->Status;
538 pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status);
540 if (req->Present & PRESENT_PIN_REPLACE) {
542 pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin);
544 if (req->Present & PRESENT_EXT_STATUS) {
545 c->ExtStatus = req->ExtStatus;
546 pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus);
548 if (req->Present & PRESENT_IOBASE_0) {
549 u_char b = c->io.BasePort1 & 0xff;
550 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
551 b = (c->io.BasePort1 >> 8) & 0xff;
552 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
554 if (req->Present & PRESENT_IOSIZE) {
555 u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1;
556 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
559 /* Configure I/O windows */
560 if (c->state & CONFIG_IO_REQ) {
561 iomap.speed = io_speed;
562 for (i = 0; i < MAX_IO_WIN; i++)
565 iomap.flags = MAP_ACTIVE;
566 switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
567 case IO_DATA_PATH_WIDTH_16:
568 iomap.flags |= MAP_16BIT; break;
569 case IO_DATA_PATH_WIDTH_AUTO:
570 iomap.flags |= MAP_AUTOSZ; break;
574 iomap.start = s->io[i].res->start;
575 iomap.stop = s->io[i].res->end;
576 s->ops->set_io_map(s, &iomap);
581 c->state |= CONFIG_LOCKED;
584 } /* pcmcia_request_configuration */
585 EXPORT_SYMBOL(pcmcia_request_configuration);
588 /** pcmcia_request_io
590 * Request_io() reserves ranges of port addresses for a socket.
591 * I have not implemented range sharing or alias addressing.
593 int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
595 struct pcmcia_socket *s = p_dev->socket;
598 if (!(s->state & SOCKET_PRESENT))
603 c = p_dev->function_config;
604 if (c->state & CONFIG_LOCKED)
606 if (c->state & CONFIG_IO_REQ) {
607 dev_dbg(&s->dev, "IO already configured\n");
610 if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
611 dev_dbg(&s->dev, "bad attribute setting for IO region 1\n");
614 if ((req->NumPorts2 > 0) &&
615 (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
616 dev_dbg(&s->dev, "bad attribute setting for IO region 2\n");
620 dev_dbg(&s->dev, "trying to allocate resource 1\n");
621 if (alloc_io_space(s, req->Attributes1, &req->BasePort1,
622 req->NumPorts1, req->IOAddrLines)) {
623 dev_dbg(&s->dev, "allocation of resource 1 failed\n");
627 if (req->NumPorts2) {
628 dev_dbg(&s->dev, "trying to allocate resource 2\n");
629 if (alloc_io_space(s, req->Attributes2, &req->BasePort2,
630 req->NumPorts2, req->IOAddrLines)) {
631 dev_dbg(&s->dev, "allocation of resource 2 failed\n");
632 release_io_space(s, req->BasePort1, req->NumPorts1);
638 c->state |= CONFIG_IO_REQ;
641 } /* pcmcia_request_io */
642 EXPORT_SYMBOL(pcmcia_request_io);
645 /** pcmcia_request_irq
647 * Request_irq() reserves an irq for this client.
649 * Also, since Linux only reserves irq's when they are actually
650 * hooked, we don't guarantee that an irq will still be available
651 * when the configuration is locked. Now that I think about it,
652 * there might be a way to fix this using a dummy handler.
655 #ifdef CONFIG_PCMCIA_PROBE
656 static irqreturn_t test_action(int cpl, void *dev_id)
662 int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
664 struct pcmcia_socket *s = p_dev->socket;
666 int ret = -EINVAL, irq = 0;
669 if (!(s->state & SOCKET_PRESENT))
671 c = p_dev->function_config;
672 if (c->state & CONFIG_LOCKED)
674 if (c->state & CONFIG_IRQ_REQ) {
675 dev_dbg(&s->dev, "IRQ already configured\n");
679 /* Decide what type of interrupt we are registering */
681 if (s->functions > 1) /* All of this ought to be handled higher up */
683 else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
685 else printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n");
687 #ifdef CONFIG_PCMCIA_PROBE
690 /* if the underlying IRQ infrastructure allows for it, only allocate
691 * the IRQ, but do not enable it
693 if (!(req->Attributes & IRQ_HANDLE_PRESENT))
694 type |= IRQ_NOAUTOEN;
695 #endif /* IRQ_NOAUTOEN */
697 if (s->irq.AssignedIRQ != 0) {
698 /* If the interrupt is already assigned, it must be the same */
699 irq = s->irq.AssignedIRQ;
702 u32 mask = s->irq_mask;
703 void *data = &p_dev->dev.driver; /* something unique to this device */
705 for (try = 0; try < 64; try++) {
708 /* marked as available by driver, and not blocked by userspace? */
709 if (!((mask >> irq) & 1))
712 /* avoid an IRQ which is already used by a PCMCIA card */
713 if ((try < 32) && pcmcia_used_irq[irq])
716 /* register the correct driver, if possible, of check whether
717 * registering a dummy handle works, i.e. if the IRQ isn't
718 * marked as used by the kernel resource management core */
719 ret = request_irq(irq,
720 (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action,
723 (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data);
725 if (!(req->Attributes & IRQ_HANDLE_PRESENT))
732 /* only assign PCI irq if no IRQ already assigned */
733 if (ret && !s->irq.AssignedIRQ) {
740 if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) {
741 ret = request_irq(irq, req->Handler, type,
742 p_dev->devname, req->Instance);
747 /* Make sure the fact the request type was overridden is passed back */
748 if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) {
749 req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
750 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: "
751 "request for exclusive IRQ could not be fulfilled.\n");
752 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
753 "needs updating to supported shared IRQ lines.\n");
755 c->irq.Attributes = req->Attributes;
756 s->irq.AssignedIRQ = req->AssignedIRQ = irq;
759 c->state |= CONFIG_IRQ_REQ;
762 #ifdef CONFIG_PCMCIA_PROBE
763 pcmcia_used_irq[irq]++;
767 } /* pcmcia_request_irq */
768 EXPORT_SYMBOL(pcmcia_request_irq);
771 /** pcmcia_request_window
773 * Request_window() establishes a mapping between card memory space
774 * and system memory space.
776 int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh)
778 struct pcmcia_socket *s = (*p_dev)->socket;
783 if (!(s->state & SOCKET_PRESENT))
785 if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
786 dev_dbg(&s->dev, "bad attribute setting for iomem region\n");
790 /* Window size defaults to smallest available */
792 req->Size = s->map_size;
793 align = (((s->features & SS_CAP_MEM_ALIGN) ||
794 (req->Attributes & WIN_STRICT_ALIGN)) ?
795 req->Size : s->map_size);
796 if (req->Size & (s->map_size-1)) {
797 dev_dbg(&s->dev, "invalid map size\n");
800 if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
801 (req->Base & (align-1))) {
802 dev_dbg(&s->dev, "invalid base address\n");
808 /* Allocate system memory window */
809 for (w = 0; w < MAX_WIN; w++)
810 if (!(s->state & SOCKET_WIN_REQ(w))) break;
812 dev_dbg(&s->dev, "all windows are used already\n");
817 win->magic = WINDOW_MAGIC;
819 win->handle = *p_dev;
822 if (!(s->features & SS_CAP_STATIC_MAP)) {
823 win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align,
824 (req->Attributes & WIN_MAP_BELOW_1MB), s);
826 dev_dbg(&s->dev, "allocating mem region failed\n");
830 (*p_dev)->_win |= CLIENT_WIN_REQ(w);
832 /* Configure the socket controller */
835 win->ctl.speed = req->AccessSpeed;
836 if (req->Attributes & WIN_MEMORY_TYPE)
837 win->ctl.flags |= MAP_ATTRIB;
838 if (req->Attributes & WIN_ENABLE)
839 win->ctl.flags |= MAP_ACTIVE;
840 if (req->Attributes & WIN_DATA_WIDTH_16)
841 win->ctl.flags |= MAP_16BIT;
842 if (req->Attributes & WIN_USE_WAIT)
843 win->ctl.flags |= MAP_USE_WAIT;
844 win->ctl.card_start = 0;
845 if (s->ops->set_mem_map(s, &win->ctl) != 0) {
846 dev_dbg(&s->dev, "failed to set memory mapping\n");
849 s->state |= SOCKET_WIN_REQ(w);
851 /* Return window handle */
852 if (s->features & SS_CAP_STATIC_MAP) {
853 req->Base = win->ctl.static_start;
855 req->Base = win->ctl.res->start;
860 } /* pcmcia_request_window */
861 EXPORT_SYMBOL(pcmcia_request_window);
863 void pcmcia_disable_device(struct pcmcia_device *p_dev) {
864 pcmcia_release_configuration(p_dev);
865 pcmcia_release_io(p_dev, &p_dev->io);
866 pcmcia_release_irq(p_dev, &p_dev->irq);
868 pcmcia_release_window(p_dev->win);
870 EXPORT_SYMBOL(pcmcia_disable_device);
873 struct pcmcia_cfg_mem {
874 struct pcmcia_device *p_dev;
876 int (*conf_check) (struct pcmcia_device *p_dev,
877 cistpl_cftable_entry_t *cfg,
878 cistpl_cftable_entry_t *dflt,
882 cistpl_cftable_entry_t dflt;
886 * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
888 * pcmcia_do_loop_config() is the internal callback for the call from
889 * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
890 * by a struct pcmcia_cfg_mem.
892 static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
894 cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
895 struct pcmcia_cfg_mem *cfg_mem = priv;
898 cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
899 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
900 cfg_mem->dflt = *cfg;
902 return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
903 cfg_mem->p_dev->socket->socket.Vcc,
908 * pcmcia_loop_config() - loop over configuration options
909 * @p_dev: the struct pcmcia_device which we need to loop for.
910 * @conf_check: function to call for each configuration option.
911 * It gets passed the struct pcmcia_device, the CIS data
912 * describing the configuration option, and private data
913 * being passed to pcmcia_loop_config()
914 * @priv_data: private data to be passed to the conf_check function.
916 * pcmcia_loop_config() loops over all configuration options, and calls
917 * the driver-specific conf_check() for each one, checking whether
918 * it is a valid one. Returns 0 on success or errorcode otherwise.
920 int pcmcia_loop_config(struct pcmcia_device *p_dev,
921 int (*conf_check) (struct pcmcia_device *p_dev,
922 cistpl_cftable_entry_t *cfg,
923 cistpl_cftable_entry_t *dflt,
928 struct pcmcia_cfg_mem *cfg_mem;
931 cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
935 cfg_mem->p_dev = p_dev;
936 cfg_mem->conf_check = conf_check;
937 cfg_mem->priv_data = priv_data;
939 ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
940 CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
941 cfg_mem, pcmcia_do_loop_config);
946 EXPORT_SYMBOL(pcmcia_loop_config);
949 struct pcmcia_loop_mem {
950 struct pcmcia_device *p_dev;
952 int (*loop_tuple) (struct pcmcia_device *p_dev,
958 * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
960 * pcmcia_do_loop_tuple() is the internal callback for the call from
961 * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
962 * by a struct pcmcia_cfg_mem.
964 static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
966 struct pcmcia_loop_mem *loop = priv;
968 return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
972 * pcmcia_loop_tuple() - loop over tuples in the CIS
973 * @p_dev: the struct pcmcia_device which we need to loop for.
974 * @code: which CIS code shall we look for?
975 * @priv_data: private data to be passed to the loop_tuple function.
976 * @loop_tuple: function to call for each CIS entry of type @function. IT
977 * gets passed the raw tuple and @priv_data.
979 * pcmcia_loop_tuple() loops over all CIS entries of type @function, and
980 * calls the @loop_tuple function for each entry. If the call to @loop_tuple
981 * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
983 int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
984 int (*loop_tuple) (struct pcmcia_device *p_dev,
989 struct pcmcia_loop_mem loop = {
991 .loop_tuple = loop_tuple,
992 .priv_data = priv_data};
994 return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
995 &loop, pcmcia_do_loop_tuple);
997 EXPORT_SYMBOL(pcmcia_loop_tuple);
1000 struct pcmcia_loop_get {
1006 * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
1008 * pcmcia_do_get_tuple() is the internal callback for the call from
1009 * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
1010 * the first tuple, return 0 unconditionally. Create a memory buffer large
1011 * enough to hold the content of the tuple, and fill it with the tuple data.
1012 * The caller is responsible to free the buffer.
1014 static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
1017 struct pcmcia_loop_get *get = priv;
1019 *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
1021 get->len = tuple->TupleDataLen;
1022 memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
1028 * pcmcia_get_tuple() - get first tuple from CIS
1029 * @p_dev: the struct pcmcia_device which we need to loop for.
1030 * @code: which CIS code shall we look for?
1031 * @buf: pointer to store the buffer to.
1033 * pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
1034 * It returns the buffer length (or zero). The caller is responsible to free
1035 * the buffer passed in @buf.
1037 size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
1038 unsigned char **buf)
1040 struct pcmcia_loop_get get = {
1046 pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
1050 EXPORT_SYMBOL(pcmcia_get_tuple);
1054 * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
1056 * pcmcia_do_get_mac() is the internal callback for the call from
1057 * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
1058 * tuple contains a proper LAN_NODE_ID of length 6, and copy the data
1059 * to struct net_device->dev_addr[i].
1061 static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
1064 struct net_device *dev = priv;
1067 if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
1069 if (tuple->TupleDataLen < ETH_ALEN + 2) {
1070 dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
1075 if (tuple->TupleData[1] != ETH_ALEN) {
1076 dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
1079 for (i = 0; i < 6; i++)
1080 dev->dev_addr[i] = tuple->TupleData[i+2];
1085 * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
1086 * @p_dev: the struct pcmcia_device for which we want the address.
1087 * @dev: a properly prepared struct net_device to store the info to.
1089 * pcmcia_get_mac_from_cis() reads out the hardware MAC address from
1090 * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
1091 * must be set up properly by the driver (see examples!).
1093 int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
1095 return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
1097 EXPORT_SYMBOL(pcmcia_get_mac_from_cis);