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>
24 #include <linux/slab.h>
28 #include <pcmcia/cs_types.h>
29 #include <pcmcia/ss.h>
30 #include <pcmcia/cs.h>
31 #include <pcmcia/cistpl.h>
32 #include <pcmcia/cisreg.h>
33 #include <pcmcia/ds.h>
35 #include "cs_internal.h"
38 /* Access speed for IO windows */
40 module_param(io_speed, int, 0444);
43 static int pcmcia_adjust_io_region(struct resource *res, unsigned long start,
44 unsigned long end, struct pcmcia_socket *s)
46 if (s->resource_ops->adjust_io_region)
47 return s->resource_ops->adjust_io_region(res, start, end, s);
51 static struct resource *pcmcia_find_io_region(unsigned long base, int num,
53 struct pcmcia_socket *s)
55 if (s->resource_ops->find_io)
56 return s->resource_ops->find_io(base, num, align, s);
60 int pcmcia_validate_mem(struct pcmcia_socket *s)
62 if (s->resource_ops->validate_mem)
63 return s->resource_ops->validate_mem(s);
64 /* if there is no callback, we can assume that everything is OK */
68 struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
69 int low, struct pcmcia_socket *s)
71 if (s->resource_ops->find_mem)
72 return s->resource_ops->find_mem(base, num, align, low, s);
79 * Special stuff for managing IO windows, because they are scarce
82 static int alloc_io_space(struct pcmcia_socket *s, u_int attr,
83 unsigned int *base, unsigned int num, u_int lines)
86 unsigned int try, align;
88 align = (*base) ? (lines ? 1<<lines : 0) : 1;
89 if (align && (align < num)) {
91 dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n",
95 while (align && (align < num))
98 if (*base & ~(align-1)) {
99 dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n",
103 if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) {
104 *base = s->io_offset | (*base & 0x0fff);
107 /* Check for an already-allocated window that must conflict with
108 * what was asked for. It is a hack because it does not catch all
109 * potential conflicts, just the most obvious ones.
111 for (i = 0; i < MAX_IO_WIN; i++)
112 if ((s->io[i].res) && *base &&
113 ((s->io[i].res->start & (align-1)) == *base))
115 for (i = 0; i < MAX_IO_WIN; i++) {
117 s->io[i].res = pcmcia_find_io_region(*base, num, align, s);
119 *base = s->io[i].res->start;
120 s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS);
121 s->io[i].InUse = num;
125 } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS))
127 /* Try to extend top of window */
128 try = s->io[i].res->end + 1;
129 if ((*base == 0) || (*base == try))
130 if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start,
131 s->io[i].res->end + num, s) == 0) {
133 s->io[i].InUse += num;
136 /* Try to extend bottom of window */
137 try = s->io[i].res->start - num;
138 if ((*base == 0) || (*base == try))
139 if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num,
140 s->io[i].res->end, s) == 0) {
142 s->io[i].InUse += num;
146 return (i == MAX_IO_WIN);
147 } /* alloc_io_space */
150 static void release_io_space(struct pcmcia_socket *s, unsigned int base,
155 for (i = 0; i < MAX_IO_WIN; i++) {
158 if ((s->io[i].res->start <= base) &&
159 (s->io[i].res->end >= base+num-1)) {
160 s->io[i].InUse -= num;
161 /* Free the window if no one else is using it */
162 if (s->io[i].InUse == 0) {
163 release_resource(s->io[i].res);
169 } /* release_io_space */
172 /** pccard_access_configuration_register
174 * Access_configuration_register() reads and writes configuration
175 * registers in attribute memory. Memory window 0 is reserved for
176 * this and the tuple reading services.
179 int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
182 struct pcmcia_socket *s;
187 if (!p_dev || !p_dev->function_config)
192 mutex_lock(&s->ops_mutex);
193 c = p_dev->function_config;
195 if (!(c->state & CONFIG_LOCKED)) {
196 dev_dbg(&s->dev, "Configuration isnt't locked\n");
197 mutex_unlock(&s->ops_mutex);
201 addr = (c->ConfigBase + reg->Offset) >> 1;
202 mutex_unlock(&s->ops_mutex);
204 switch (reg->Action) {
206 pcmcia_read_cis_mem(s, 1, addr, 1, &val);
211 pcmcia_write_cis_mem(s, 1, addr, 1, &val);
214 dev_dbg(&s->dev, "Invalid conf register request\n");
219 } /* pcmcia_access_configuration_register */
220 EXPORT_SYMBOL(pcmcia_access_configuration_register);
223 int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
226 struct pcmcia_socket *s = p_dev->socket;
232 if (req->Page != 0) {
233 dev_dbg(&s->dev, "failure: requested page is zero\n");
236 mutex_lock(&s->ops_mutex);
237 s->win[wh].card_start = req->CardOffset;
238 ret = s->ops->set_mem_map(s, &s->win[wh]);
240 dev_warn(&s->dev, "failed to set_mem_map\n");
241 mutex_unlock(&s->ops_mutex);
243 } /* pcmcia_map_mem_page */
244 EXPORT_SYMBOL(pcmcia_map_mem_page);
247 /** pcmcia_modify_configuration
249 * Modify a locked socket configuration
251 int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
254 struct pcmcia_socket *s;
260 mutex_lock(&s->ops_mutex);
261 c = p_dev->function_config;
263 if (!(s->state & SOCKET_PRESENT)) {
264 dev_dbg(&s->dev, "No card present\n");
268 if (!(c->state & CONFIG_LOCKED)) {
269 dev_dbg(&s->dev, "Configuration isnt't locked\n");
274 if (mod->Attributes & (CONF_IRQ_CHANGE_VALID | CONF_VCC_CHANGE_VALID)) {
276 "changing Vcc or IRQ is not allowed at this time\n");
281 /* We only allow changing Vpp1 and Vpp2 to the same value */
282 if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
283 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
284 if (mod->Vpp1 != mod->Vpp2) {
285 dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
289 s->socket.Vpp = mod->Vpp1;
290 if (s->ops->set_socket(s, &s->socket)) {
291 dev_printk(KERN_WARNING, &s->dev,
292 "Unable to set VPP\n");
296 } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
297 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
298 dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
303 if (mod->Attributes & CONF_IO_CHANGE_WIDTH) {
304 pccard_io_map io_off = { 0, 0, 0, 0, 1 };
308 io_on.speed = io_speed;
309 for (i = 0; i < MAX_IO_WIN; i++) {
315 io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
316 io_on.start = s->io[i].res->start;
317 io_on.stop = s->io[i].res->end;
319 s->ops->set_io_map(s, &io_off);
321 s->ops->set_io_map(s, &io_on);
326 mutex_unlock(&s->ops_mutex);
329 } /* modify_configuration */
330 EXPORT_SYMBOL(pcmcia_modify_configuration);
333 int pcmcia_release_configuration(struct pcmcia_device *p_dev)
335 pccard_io_map io = { 0, 0, 0, 0, 1 };
336 struct pcmcia_socket *s = p_dev->socket;
340 mutex_lock(&s->ops_mutex);
341 c = p_dev->function_config;
342 if (p_dev->_locked) {
344 if (--(s->lock_count) == 0) {
345 s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
347 s->socket.io_irq = 0;
348 s->ops->set_socket(s, &s->socket);
351 if (c->state & CONFIG_LOCKED) {
352 c->state &= ~CONFIG_LOCKED;
353 if (c->state & CONFIG_IO_REQ)
354 for (i = 0; i < MAX_IO_WIN; i++) {
358 if (s->io[i].Config != 0)
361 s->ops->set_io_map(s, &io);
364 mutex_unlock(&s->ops_mutex);
367 } /* pcmcia_release_configuration */
370 /** pcmcia_release_io
372 * Release_io() releases the I/O ranges allocated by a client. This
373 * may be invoked some time after a card ejection has already dumped
374 * the actual socket configuration, so if the client is "stale", we
375 * don't bother checking the port ranges against the current socket
378 static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
380 struct pcmcia_socket *s = p_dev->socket;
384 mutex_lock(&s->ops_mutex);
385 c = p_dev->function_config;
392 if ((c->io.BasePort1 != req->BasePort1) ||
393 (c->io.NumPorts1 != req->NumPorts1) ||
394 (c->io.BasePort2 != req->BasePort2) ||
395 (c->io.NumPorts2 != req->NumPorts2))
398 c->state &= ~CONFIG_IO_REQ;
400 release_io_space(s, req->BasePort1, req->NumPorts1);
402 release_io_space(s, req->BasePort2, req->NumPorts2);
405 mutex_unlock(&s->ops_mutex);
408 } /* pcmcia_release_io */
411 int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
413 struct pcmcia_socket *s = p_dev->socket;
420 mutex_lock(&s->ops_mutex);
423 if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) {
424 dev_dbg(&s->dev, "not releasing unknown window\n");
425 mutex_unlock(&s->ops_mutex);
429 /* Shut down memory window */
430 win->flags &= ~MAP_ACTIVE;
431 s->ops->set_mem_map(s, win);
432 s->state &= ~SOCKET_WIN_REQ(wh);
434 /* Release system memory */
436 release_resource(win->res);
440 p_dev->_win &= ~CLIENT_WIN_REQ(wh);
441 mutex_unlock(&s->ops_mutex);
444 } /* pcmcia_release_window */
445 EXPORT_SYMBOL(pcmcia_release_window);
448 int pcmcia_request_configuration(struct pcmcia_device *p_dev,
453 struct pcmcia_socket *s = p_dev->socket;
457 if (!(s->state & SOCKET_PRESENT))
460 if (req->IntType & INT_CARDBUS) {
461 dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
465 mutex_lock(&s->ops_mutex);
466 c = p_dev->function_config;
467 if (c->state & CONFIG_LOCKED) {
468 mutex_unlock(&s->ops_mutex);
469 dev_dbg(&s->dev, "Configuration is locked\n");
473 /* Do power control. We don't allow changes in Vcc. */
474 s->socket.Vpp = req->Vpp;
475 if (s->ops->set_socket(s, &s->socket)) {
476 mutex_unlock(&s->ops_mutex);
477 dev_printk(KERN_WARNING, &s->dev,
478 "Unable to set socket state\n");
482 /* Pick memory or I/O card, DMA mode, interrupt */
483 c->IntType = req->IntType;
484 c->Attributes = req->Attributes;
485 if (req->IntType & INT_MEMORY_AND_IO)
486 s->socket.flags |= SS_IOCARD;
487 if (req->IntType & INT_ZOOMED_VIDEO)
488 s->socket.flags |= SS_ZVCARD | SS_IOCARD;
489 if (req->Attributes & CONF_ENABLE_DMA)
490 s->socket.flags |= SS_DMA_MODE;
491 if (req->Attributes & CONF_ENABLE_SPKR)
492 s->socket.flags |= SS_SPKR_ENA;
493 if (req->Attributes & CONF_ENABLE_IRQ)
494 s->socket.io_irq = s->pcmcia_irq;
496 s->socket.io_irq = 0;
497 s->ops->set_socket(s, &s->socket);
499 mutex_unlock(&s->ops_mutex);
501 /* Set up CIS configuration registers */
502 base = c->ConfigBase = req->ConfigBase;
503 c->CardValues = req->Present;
504 if (req->Present & PRESENT_COPY) {
506 pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy);
508 if (req->Present & PRESENT_OPTION) {
509 if (s->functions == 1) {
510 c->Option = req->ConfigIndex & COR_CONFIG_MASK;
512 c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK;
513 c->Option |= COR_FUNC_ENA|COR_IREQ_ENA;
514 if (req->Present & PRESENT_IOBASE_0)
515 c->Option |= COR_ADDR_DECODE;
517 if ((req->Attributes & CONF_ENABLE_IRQ) &&
518 !(req->Attributes & CONF_ENABLE_PULSE_IRQ))
519 c->Option |= COR_LEVEL_REQ;
520 pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option);
523 if (req->Present & PRESENT_STATUS) {
524 c->Status = req->Status;
525 pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status);
527 if (req->Present & PRESENT_PIN_REPLACE) {
529 pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin);
531 if (req->Present & PRESENT_EXT_STATUS) {
532 c->ExtStatus = req->ExtStatus;
533 pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus);
535 if (req->Present & PRESENT_IOBASE_0) {
536 u_char b = c->io.BasePort1 & 0xff;
537 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
538 b = (c->io.BasePort1 >> 8) & 0xff;
539 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
541 if (req->Present & PRESENT_IOSIZE) {
542 u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1;
543 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
546 /* Configure I/O windows */
547 if (c->state & CONFIG_IO_REQ) {
548 mutex_lock(&s->ops_mutex);
549 iomap.speed = io_speed;
550 for (i = 0; i < MAX_IO_WIN; i++)
553 iomap.flags = MAP_ACTIVE;
554 switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
555 case IO_DATA_PATH_WIDTH_16:
556 iomap.flags |= MAP_16BIT; break;
557 case IO_DATA_PATH_WIDTH_AUTO:
558 iomap.flags |= MAP_AUTOSZ; break;
562 iomap.start = s->io[i].res->start;
563 iomap.stop = s->io[i].res->end;
564 s->ops->set_io_map(s, &iomap);
567 mutex_unlock(&s->ops_mutex);
570 c->state |= CONFIG_LOCKED;
573 } /* pcmcia_request_configuration */
574 EXPORT_SYMBOL(pcmcia_request_configuration);
577 /** pcmcia_request_io
579 * Request_io() reserves ranges of port addresses for a socket.
580 * I have not implemented range sharing or alias addressing.
582 int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
584 struct pcmcia_socket *s = p_dev->socket;
588 mutex_lock(&s->ops_mutex);
590 if (!(s->state & SOCKET_PRESENT)) {
591 dev_dbg(&s->dev, "No card present\n");
598 c = p_dev->function_config;
599 if (c->state & CONFIG_LOCKED) {
600 dev_dbg(&s->dev, "Configuration is locked\n");
603 if (c->state & CONFIG_IO_REQ) {
604 dev_dbg(&s->dev, "IO already configured\n");
607 if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
608 dev_dbg(&s->dev, "bad attribute setting for IO region 1\n");
611 if ((req->NumPorts2 > 0) &&
612 (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
613 dev_dbg(&s->dev, "bad attribute setting for IO region 2\n");
617 dev_dbg(&s->dev, "trying to allocate resource 1\n");
618 ret = alloc_io_space(s, req->Attributes1, &req->BasePort1,
619 req->NumPorts1, req->IOAddrLines);
621 dev_dbg(&s->dev, "allocation of resource 1 failed\n");
625 if (req->NumPorts2) {
626 dev_dbg(&s->dev, "trying to allocate resource 2\n");
627 ret = alloc_io_space(s, req->Attributes2, &req->BasePort2,
628 req->NumPorts2, req->IOAddrLines);
630 dev_dbg(&s->dev, "allocation of resource 2 failed\n");
631 release_io_space(s, req->BasePort1, req->NumPorts1);
637 c->state |= CONFIG_IO_REQ;
639 dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret);
642 mutex_unlock(&s->ops_mutex);
645 } /* pcmcia_request_io */
646 EXPORT_SYMBOL(pcmcia_request_io);
650 * pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device
652 * pcmcia_request_irq() is a wrapper around request_irq which will allow
653 * the PCMCIA core to clean up the registration in pcmcia_disable_device().
654 * Drivers are free to use request_irq() directly, but then they need to
655 * call free_irq themselfves, too. Also, only IRQF_SHARED capable IRQ
656 * handlers are allowed.
658 int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
659 irq_handler_t handler)
666 ret = request_irq(p_dev->irq, handler, IRQF_SHARED,
667 p_dev->devname, p_dev->priv);
673 EXPORT_SYMBOL(pcmcia_request_irq);
677 * pcmcia_request_exclusive_irq() - attempt to request an exclusive IRQ first
679 * pcmcia_request_exclusive_irq() is a wrapper around request_irq which
680 * attempts first to request an exclusive IRQ. If it fails, it also accepts
681 * a shared IRQ, but prints out a warning. PCMCIA drivers should allow for
682 * IRQ sharing and either use request_irq directly (then they need to call
683 * free_irq themselves, too), or the pcmcia_request_irq() function.
686 pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev, irq_handler_t handler)
693 ret = request_irq(p_dev->irq, handler, 0, p_dev->devname, p_dev->priv);
695 ret = pcmcia_request_irq(p_dev, handler);
696 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: "
697 "request for exclusive IRQ could not be fulfilled.\n");
698 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
699 "needs updating to supported shared IRQ lines.\n");
702 dev_printk(KERN_INFO, &p_dev->dev, "request_irq() failed\n");
707 } /* pcmcia_request_exclusive_irq */
708 EXPORT_SYMBOL(pcmcia_request_exclusive_irq);
711 #ifdef CONFIG_PCMCIA_PROBE
713 /* mask of IRQs already reserved by other cards, we should avoid using them */
714 static u8 pcmcia_used_irq[NR_IRQS];
716 static irqreturn_t test_action(int cpl, void *dev_id)
722 * pcmcia_setup_isa_irq() - determine whether an ISA IRQ can be used
723 * @p_dev - the associated PCMCIA device
725 * locking note: must be called with ops_mutex locked.
727 static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
729 struct pcmcia_socket *s = p_dev->socket;
730 unsigned int try, irq;
731 u32 mask = s->irq_mask;
734 for (try = 0; try < 64; try++) {
737 /* marked as available by driver, not blocked by userspace? */
738 if (!((mask >> irq) & 1))
741 /* avoid an IRQ which is already used by another PCMCIA card */
742 if ((try < 32) && pcmcia_used_irq[irq])
745 /* register the correct driver, if possible, to check whether
746 * registering a dummy handle works, i.e. if the IRQ isn't
747 * marked as used by the kernel resource management core */
748 ret = request_irq(irq, test_action, type, p_dev->devname,
751 free_irq(irq, p_dev);
752 p_dev->irq = s->pcmcia_irq = irq;
753 pcmcia_used_irq[irq]++;
761 void pcmcia_cleanup_irq(struct pcmcia_socket *s)
763 pcmcia_used_irq[s->pcmcia_irq]--;
767 #else /* CONFIG_PCMCIA_PROBE */
769 static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
774 void pcmcia_cleanup_irq(struct pcmcia_socket *s)
780 #endif /* CONFIG_PCMCIA_PROBE */
784 * pcmcia_setup_irq() - determine IRQ to be used for device
785 * @p_dev - the associated PCMCIA device
787 * locking note: must be called with ops_mutex locked.
789 int pcmcia_setup_irq(struct pcmcia_device *p_dev)
791 struct pcmcia_socket *s = p_dev->socket;
796 /* already assigned? */
798 p_dev->irq = s->pcmcia_irq;
802 /* prefer an exclusive ISA irq */
803 if (!pcmcia_setup_isa_irq(p_dev, 0))
806 /* but accept a shared ISA irq */
807 if (!pcmcia_setup_isa_irq(p_dev, IRQF_SHARED))
810 /* but use the PCI irq otherwise */
812 p_dev->irq = s->pcmcia_irq = s->pci_irq;
820 /** pcmcia_request_window
822 * Request_window() establishes a mapping between card memory space
823 * and system memory space.
825 int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_handle_t *wh)
827 struct pcmcia_socket *s = p_dev->socket;
832 if (!(s->state & SOCKET_PRESENT)) {
833 dev_dbg(&s->dev, "No card present\n");
836 if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
837 dev_dbg(&s->dev, "bad attribute setting for iomem region\n");
841 /* Window size defaults to smallest available */
843 req->Size = s->map_size;
844 align = (((s->features & SS_CAP_MEM_ALIGN) ||
845 (req->Attributes & WIN_STRICT_ALIGN)) ?
846 req->Size : s->map_size);
847 if (req->Size & (s->map_size-1)) {
848 dev_dbg(&s->dev, "invalid map size\n");
851 if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
852 (req->Base & (align-1))) {
853 dev_dbg(&s->dev, "invalid base address\n");
859 /* Allocate system memory window */
860 for (w = 0; w < MAX_WIN; w++)
861 if (!(s->state & SOCKET_WIN_REQ(w)))
864 dev_dbg(&s->dev, "all windows are used already\n");
868 mutex_lock(&s->ops_mutex);
871 if (!(s->features & SS_CAP_STATIC_MAP)) {
872 win->res = pcmcia_find_mem_region(req->Base, req->Size, align,
873 (req->Attributes & WIN_MAP_BELOW_1MB), s);
875 dev_dbg(&s->dev, "allocating mem region failed\n");
876 mutex_unlock(&s->ops_mutex);
880 p_dev->_win |= CLIENT_WIN_REQ(w);
882 /* Configure the socket controller */
885 win->speed = req->AccessSpeed;
886 if (req->Attributes & WIN_MEMORY_TYPE)
887 win->flags |= MAP_ATTRIB;
888 if (req->Attributes & WIN_ENABLE)
889 win->flags |= MAP_ACTIVE;
890 if (req->Attributes & WIN_DATA_WIDTH_16)
891 win->flags |= MAP_16BIT;
892 if (req->Attributes & WIN_USE_WAIT)
893 win->flags |= MAP_USE_WAIT;
896 if (s->ops->set_mem_map(s, win) != 0) {
897 dev_dbg(&s->dev, "failed to set memory mapping\n");
898 mutex_unlock(&s->ops_mutex);
901 s->state |= SOCKET_WIN_REQ(w);
903 /* Return window handle */
904 if (s->features & SS_CAP_STATIC_MAP)
905 req->Base = win->static_start;
907 req->Base = win->res->start;
909 mutex_unlock(&s->ops_mutex);
913 } /* pcmcia_request_window */
914 EXPORT_SYMBOL(pcmcia_request_window);
916 void pcmcia_disable_device(struct pcmcia_device *p_dev)
918 pcmcia_release_configuration(p_dev);
919 pcmcia_release_io(p_dev, &p_dev->io);
921 free_irq(p_dev->irq, p_dev->priv);
923 pcmcia_release_window(p_dev, p_dev->win);
925 EXPORT_SYMBOL(pcmcia_disable_device);