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)) {
163 dev_dbg(&s->dev, "Configuration isnt't locked\n");
167 addr = (c->ConfigBase + reg->Offset) >> 1;
169 switch (reg->Action) {
171 pcmcia_read_cis_mem(s, 1, addr, 1, &val);
176 pcmcia_write_cis_mem(s, 1, addr, 1, &val);
179 dev_dbg(&s->dev, "Invalid conf register request\n");
184 } /* pcmcia_access_configuration_register */
185 EXPORT_SYMBOL(pcmcia_access_configuration_register);
188 /** pcmcia_get_window
190 int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *wh_out,
191 window_handle_t wh, win_req_t *req)
196 if (!s || !(s->state & SOCKET_PRESENT))
202 for (w = wh; w < MAX_WIN; w++)
203 if (s->state & SOCKET_WIN_REQ(w))
208 req->Base = win->ctl.res->start;
209 req->Size = win->ctl.res->end - win->ctl.res->start + 1;
210 req->AccessSpeed = win->ctl.speed;
212 if (win->ctl.flags & MAP_ATTRIB)
213 req->Attributes |= WIN_MEMORY_TYPE_AM;
214 if (win->ctl.flags & MAP_ACTIVE)
215 req->Attributes |= WIN_ENABLE;
216 if (win->ctl.flags & MAP_16BIT)
217 req->Attributes |= WIN_DATA_WIDTH_16;
218 if (win->ctl.flags & MAP_USE_WAIT)
219 req->Attributes |= WIN_USE_WAIT;
223 } /* pcmcia_get_window */
224 EXPORT_SYMBOL(pcmcia_get_window);
227 /** pcmcia_get_mem_page
229 * Change the card address of an already open memory window.
231 int pcmcia_get_mem_page(struct pcmcia_socket *skt, window_handle_t wh,
239 req->CardOffset = skt->win[wh].ctl.card_start;
241 } /* pcmcia_get_mem_page */
242 EXPORT_SYMBOL(pcmcia_get_mem_page);
245 int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
248 struct pcmcia_socket *s = p_dev->socket;
253 if (req->Page != 0) {
254 dev_dbg(&s->dev, "failure: requested page is zero\n");
257 s->win[wh].ctl.card_start = req->CardOffset;
258 if (s->ops->set_mem_map(s, &s->win[wh].ctl) != 0) {
259 dev_dbg(&s->dev, "failed to set_mem_map\n");
263 } /* pcmcia_map_mem_page */
264 EXPORT_SYMBOL(pcmcia_map_mem_page);
267 /** pcmcia_modify_configuration
269 * Modify a locked socket configuration
271 int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
274 struct pcmcia_socket *s;
278 c = p_dev->function_config;
280 if (!(s->state & SOCKET_PRESENT)) {
281 dev_dbg(&s->dev, "No card present\n");
284 if (!(c->state & CONFIG_LOCKED)) {
285 dev_dbg(&s->dev, "Configuration isnt't locked\n");
289 if (mod->Attributes & CONF_IRQ_CHANGE_VALID) {
290 if (mod->Attributes & CONF_ENABLE_IRQ) {
291 c->Attributes |= CONF_ENABLE_IRQ;
292 s->socket.io_irq = s->irq.AssignedIRQ;
294 c->Attributes &= ~CONF_ENABLE_IRQ;
295 s->socket.io_irq = 0;
297 s->ops->set_socket(s, &s->socket);
300 if (mod->Attributes & CONF_VCC_CHANGE_VALID) {
301 dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
305 /* We only allow changing Vpp1 and Vpp2 to the same value */
306 if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
307 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
308 if (mod->Vpp1 != mod->Vpp2) {
309 dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
312 s->socket.Vpp = mod->Vpp1;
313 if (s->ops->set_socket(s, &s->socket)) {
314 dev_printk(KERN_WARNING, &s->dev,
315 "Unable to set VPP\n");
318 } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
319 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
320 dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
324 if (mod->Attributes & CONF_IO_CHANGE_WIDTH) {
325 pccard_io_map io_off = { 0, 0, 0, 0, 1 };
329 io_on.speed = io_speed;
330 for (i = 0; i < MAX_IO_WIN; i++) {
336 io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
337 io_on.start = s->io[i].res->start;
338 io_on.stop = s->io[i].res->end;
340 s->ops->set_io_map(s, &io_off);
342 s->ops->set_io_map(s, &io_on);
347 } /* modify_configuration */
348 EXPORT_SYMBOL(pcmcia_modify_configuration);
351 int pcmcia_release_configuration(struct pcmcia_device *p_dev)
353 pccard_io_map io = { 0, 0, 0, 0, 1 };
354 struct pcmcia_socket *s = p_dev->socket;
355 config_t *c = p_dev->function_config;
358 if (p_dev->_locked) {
360 if (--(s->lock_count) == 0) {
361 s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
363 s->socket.io_irq = 0;
364 s->ops->set_socket(s, &s->socket);
367 if (c->state & CONFIG_LOCKED) {
368 c->state &= ~CONFIG_LOCKED;
369 if (c->state & CONFIG_IO_REQ)
370 for (i = 0; i < MAX_IO_WIN; i++) {
374 if (s->io[i].Config != 0)
377 s->ops->set_io_map(s, &io);
382 } /* pcmcia_release_configuration */
385 /** pcmcia_release_io
387 * Release_io() releases the I/O ranges allocated by a client. This
388 * may be invoked some time after a card ejection has already dumped
389 * the actual socket configuration, so if the client is "stale", we
390 * don't bother checking the port ranges against the current socket
393 static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
395 struct pcmcia_socket *s = p_dev->socket;
396 config_t *c = p_dev->function_config;
403 if ((c->io.BasePort1 != req->BasePort1) ||
404 (c->io.NumPorts1 != req->NumPorts1) ||
405 (c->io.BasePort2 != req->BasePort2) ||
406 (c->io.NumPorts2 != req->NumPorts2))
409 c->state &= ~CONFIG_IO_REQ;
411 release_io_space(s, req->BasePort1, req->NumPorts1);
413 release_io_space(s, req->BasePort2, req->NumPorts2);
416 } /* pcmcia_release_io */
419 static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
421 struct pcmcia_socket *s = p_dev->socket;
422 config_t *c= p_dev->function_config;
428 if (c->state & CONFIG_LOCKED)
430 if (c->irq.Attributes != req->Attributes) {
431 dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n");
434 if (s->irq.AssignedIRQ != req->AssignedIRQ) {
435 dev_dbg(&s->dev, "IRQ must match assigned one\n");
438 if (--s->irq.Config == 0) {
439 c->state &= ~CONFIG_IRQ_REQ;
440 s->irq.AssignedIRQ = 0;
443 if (req->Attributes & IRQ_HANDLE_PRESENT) {
444 free_irq(req->AssignedIRQ, req->Instance);
447 #ifdef CONFIG_PCMCIA_PROBE
448 pcmcia_used_irq[req->AssignedIRQ]--;
452 } /* pcmcia_release_irq */
455 int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
457 struct pcmcia_socket *s = p_dev->socket;
466 if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) {
467 dev_dbg(&s->dev, "not releasing unknown window\n");
471 /* Shut down memory window */
472 win->ctl.flags &= ~MAP_ACTIVE;
473 s->ops->set_mem_map(s, &win->ctl);
474 s->state &= ~SOCKET_WIN_REQ(wh);
476 /* Release system memory */
478 release_resource(win->ctl.res);
482 p_dev->_win &= ~CLIENT_WIN_REQ(wh);
485 } /* pcmcia_release_window */
486 EXPORT_SYMBOL(pcmcia_release_window);
489 int pcmcia_request_configuration(struct pcmcia_device *p_dev,
494 struct pcmcia_socket *s = p_dev->socket;
498 if (!(s->state & SOCKET_PRESENT))
501 if (req->IntType & INT_CARDBUS) {
502 dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
505 c = p_dev->function_config;
506 if (c->state & CONFIG_LOCKED) {
507 dev_dbg(&s->dev, "Configuration is locked\n");
511 /* Do power control. We don't allow changes in Vcc. */
512 s->socket.Vpp = req->Vpp;
513 if (s->ops->set_socket(s, &s->socket)) {
514 dev_printk(KERN_WARNING, &s->dev,
515 "Unable to set socket state\n");
519 /* Pick memory or I/O card, DMA mode, interrupt */
520 c->IntType = req->IntType;
521 c->Attributes = req->Attributes;
522 if (req->IntType & INT_MEMORY_AND_IO)
523 s->socket.flags |= SS_IOCARD;
524 if (req->IntType & INT_ZOOMED_VIDEO)
525 s->socket.flags |= SS_ZVCARD | SS_IOCARD;
526 if (req->Attributes & CONF_ENABLE_DMA)
527 s->socket.flags |= SS_DMA_MODE;
528 if (req->Attributes & CONF_ENABLE_SPKR)
529 s->socket.flags |= SS_SPKR_ENA;
530 if (req->Attributes & CONF_ENABLE_IRQ)
531 s->socket.io_irq = s->irq.AssignedIRQ;
533 s->socket.io_irq = 0;
534 s->ops->set_socket(s, &s->socket);
537 /* Set up CIS configuration registers */
538 base = c->ConfigBase = req->ConfigBase;
539 c->CardValues = req->Present;
540 if (req->Present & PRESENT_COPY) {
542 pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy);
544 if (req->Present & PRESENT_OPTION) {
545 if (s->functions == 1) {
546 c->Option = req->ConfigIndex & COR_CONFIG_MASK;
548 c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK;
549 c->Option |= COR_FUNC_ENA|COR_IREQ_ENA;
550 if (req->Present & PRESENT_IOBASE_0)
551 c->Option |= COR_ADDR_DECODE;
553 if (c->state & CONFIG_IRQ_REQ)
554 if (!(c->irq.Attributes & IRQ_FORCED_PULSE))
555 c->Option |= COR_LEVEL_REQ;
556 pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option);
559 if (req->Present & PRESENT_STATUS) {
560 c->Status = req->Status;
561 pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status);
563 if (req->Present & PRESENT_PIN_REPLACE) {
565 pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin);
567 if (req->Present & PRESENT_EXT_STATUS) {
568 c->ExtStatus = req->ExtStatus;
569 pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus);
571 if (req->Present & PRESENT_IOBASE_0) {
572 u_char b = c->io.BasePort1 & 0xff;
573 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
574 b = (c->io.BasePort1 >> 8) & 0xff;
575 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
577 if (req->Present & PRESENT_IOSIZE) {
578 u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1;
579 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
582 /* Configure I/O windows */
583 if (c->state & CONFIG_IO_REQ) {
584 iomap.speed = io_speed;
585 for (i = 0; i < MAX_IO_WIN; i++)
588 iomap.flags = MAP_ACTIVE;
589 switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
590 case IO_DATA_PATH_WIDTH_16:
591 iomap.flags |= MAP_16BIT; break;
592 case IO_DATA_PATH_WIDTH_AUTO:
593 iomap.flags |= MAP_AUTOSZ; break;
597 iomap.start = s->io[i].res->start;
598 iomap.stop = s->io[i].res->end;
599 s->ops->set_io_map(s, &iomap);
604 c->state |= CONFIG_LOCKED;
607 } /* pcmcia_request_configuration */
608 EXPORT_SYMBOL(pcmcia_request_configuration);
611 /** pcmcia_request_io
613 * Request_io() reserves ranges of port addresses for a socket.
614 * I have not implemented range sharing or alias addressing.
616 int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
618 struct pcmcia_socket *s = p_dev->socket;
621 if (!(s->state & SOCKET_PRESENT)) {
622 dev_dbg(&s->dev, "No card present\n");
628 c = p_dev->function_config;
629 if (c->state & CONFIG_LOCKED) {
630 dev_dbg(&s->dev, "Configuration is locked\n");
633 if (c->state & CONFIG_IO_REQ) {
634 dev_dbg(&s->dev, "IO already configured\n");
637 if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
638 dev_dbg(&s->dev, "bad attribute setting for IO region 1\n");
641 if ((req->NumPorts2 > 0) &&
642 (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
643 dev_dbg(&s->dev, "bad attribute setting for IO region 2\n");
647 dev_dbg(&s->dev, "trying to allocate resource 1\n");
648 if (alloc_io_space(s, req->Attributes1, &req->BasePort1,
649 req->NumPorts1, req->IOAddrLines)) {
650 dev_dbg(&s->dev, "allocation of resource 1 failed\n");
654 if (req->NumPorts2) {
655 dev_dbg(&s->dev, "trying to allocate resource 2\n");
656 if (alloc_io_space(s, req->Attributes2, &req->BasePort2,
657 req->NumPorts2, req->IOAddrLines)) {
658 dev_dbg(&s->dev, "allocation of resource 2 failed\n");
659 release_io_space(s, req->BasePort1, req->NumPorts1);
665 c->state |= CONFIG_IO_REQ;
668 } /* pcmcia_request_io */
669 EXPORT_SYMBOL(pcmcia_request_io);
672 /** pcmcia_request_irq
674 * Request_irq() reserves an irq for this client.
676 * Also, since Linux only reserves irq's when they are actually
677 * hooked, we don't guarantee that an irq will still be available
678 * when the configuration is locked. Now that I think about it,
679 * there might be a way to fix this using a dummy handler.
682 #ifdef CONFIG_PCMCIA_PROBE
683 static irqreturn_t test_action(int cpl, void *dev_id)
689 int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
691 struct pcmcia_socket *s = p_dev->socket;
693 int ret = -EINVAL, irq = 0;
696 if (!(s->state & SOCKET_PRESENT)) {
697 dev_dbg(&s->dev, "No card present\n");
700 c = p_dev->function_config;
701 if (c->state & CONFIG_LOCKED) {
702 dev_dbg(&s->dev, "Configuration is locked\n");
705 if (c->state & CONFIG_IRQ_REQ) {
706 dev_dbg(&s->dev, "IRQ already configured\n");
710 /* Decide what type of interrupt we are registering */
712 if (s->functions > 1) /* All of this ought to be handled higher up */
714 else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
716 else printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n");
718 #ifdef CONFIG_PCMCIA_PROBE
721 /* if the underlying IRQ infrastructure allows for it, only allocate
722 * the IRQ, but do not enable it
724 if (!(req->Attributes & IRQ_HANDLE_PRESENT))
725 type |= IRQ_NOAUTOEN;
726 #endif /* IRQ_NOAUTOEN */
728 if (s->irq.AssignedIRQ != 0) {
729 /* If the interrupt is already assigned, it must be the same */
730 irq = s->irq.AssignedIRQ;
733 u32 mask = s->irq_mask;
734 void *data = &p_dev->dev.driver; /* something unique to this device */
736 for (try = 0; try < 64; try++) {
739 /* marked as available by driver, and not blocked by userspace? */
740 if (!((mask >> irq) & 1))
743 /* avoid an IRQ which is already used by a PCMCIA card */
744 if ((try < 32) && pcmcia_used_irq[irq])
747 /* register the correct driver, if possible, of check whether
748 * registering a dummy handle works, i.e. if the IRQ isn't
749 * marked as used by the kernel resource management core */
750 ret = request_irq(irq,
751 (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action,
754 (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data);
756 if (!(req->Attributes & IRQ_HANDLE_PRESENT))
763 /* only assign PCI irq if no IRQ already assigned */
764 if (ret && !s->irq.AssignedIRQ) {
766 dev_printk(KERN_INFO, &s->dev, "no IRQ found\n");
773 if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) {
774 ret = request_irq(irq, req->Handler, type,
775 p_dev->devname, req->Instance);
777 dev_printk(KERN_INFO, &s->dev,
778 "request_irq() failed\n");
783 /* Make sure the fact the request type was overridden is passed back */
784 if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) {
785 req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
786 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: "
787 "request for exclusive IRQ could not be fulfilled.\n");
788 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
789 "needs updating to supported shared IRQ lines.\n");
791 c->irq.Attributes = req->Attributes;
792 s->irq.AssignedIRQ = req->AssignedIRQ = irq;
795 c->state |= CONFIG_IRQ_REQ;
798 #ifdef CONFIG_PCMCIA_PROBE
799 pcmcia_used_irq[irq]++;
803 } /* pcmcia_request_irq */
804 EXPORT_SYMBOL(pcmcia_request_irq);
807 /** pcmcia_request_window
809 * Request_window() establishes a mapping between card memory space
810 * and system memory space.
812 int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh)
814 struct pcmcia_socket *s = (*p_dev)->socket;
819 if (!(s->state & SOCKET_PRESENT)) {
820 dev_dbg(&s->dev, "No card present\n");
823 if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
824 dev_dbg(&s->dev, "bad attribute setting for iomem region\n");
828 /* Window size defaults to smallest available */
830 req->Size = s->map_size;
831 align = (((s->features & SS_CAP_MEM_ALIGN) ||
832 (req->Attributes & WIN_STRICT_ALIGN)) ?
833 req->Size : s->map_size);
834 if (req->Size & (s->map_size-1)) {
835 dev_dbg(&s->dev, "invalid map size\n");
838 if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
839 (req->Base & (align-1))) {
840 dev_dbg(&s->dev, "invalid base address\n");
846 /* Allocate system memory window */
847 for (w = 0; w < MAX_WIN; w++)
848 if (!(s->state & SOCKET_WIN_REQ(w))) break;
850 dev_dbg(&s->dev, "all windows are used already\n");
856 if (!(s->features & SS_CAP_STATIC_MAP)) {
857 win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align,
858 (req->Attributes & WIN_MAP_BELOW_1MB), s);
860 dev_dbg(&s->dev, "allocating mem region failed\n");
864 (*p_dev)->_win |= CLIENT_WIN_REQ(w);
866 /* Configure the socket controller */
869 win->ctl.speed = req->AccessSpeed;
870 if (req->Attributes & WIN_MEMORY_TYPE)
871 win->ctl.flags |= MAP_ATTRIB;
872 if (req->Attributes & WIN_ENABLE)
873 win->ctl.flags |= MAP_ACTIVE;
874 if (req->Attributes & WIN_DATA_WIDTH_16)
875 win->ctl.flags |= MAP_16BIT;
876 if (req->Attributes & WIN_USE_WAIT)
877 win->ctl.flags |= MAP_USE_WAIT;
878 win->ctl.card_start = 0;
879 if (s->ops->set_mem_map(s, &win->ctl) != 0) {
880 dev_dbg(&s->dev, "failed to set memory mapping\n");
883 s->state |= SOCKET_WIN_REQ(w);
885 /* Return window handle */
886 if (s->features & SS_CAP_STATIC_MAP) {
887 req->Base = win->ctl.static_start;
889 req->Base = win->ctl.res->start;
894 } /* pcmcia_request_window */
895 EXPORT_SYMBOL(pcmcia_request_window);
897 void pcmcia_disable_device(struct pcmcia_device *p_dev) {
898 pcmcia_release_configuration(p_dev);
899 pcmcia_release_io(p_dev, &p_dev->io);
900 pcmcia_release_irq(p_dev, &p_dev->irq);
902 pcmcia_release_window(p_dev, p_dev->win);
904 EXPORT_SYMBOL(pcmcia_disable_device);
907 struct pcmcia_cfg_mem {
908 struct pcmcia_device *p_dev;
910 int (*conf_check) (struct pcmcia_device *p_dev,
911 cistpl_cftable_entry_t *cfg,
912 cistpl_cftable_entry_t *dflt,
916 cistpl_cftable_entry_t dflt;
920 * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
922 * pcmcia_do_loop_config() is the internal callback for the call from
923 * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
924 * by a struct pcmcia_cfg_mem.
926 static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
928 cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
929 struct pcmcia_cfg_mem *cfg_mem = priv;
932 cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
933 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
934 cfg_mem->dflt = *cfg;
936 return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
937 cfg_mem->p_dev->socket->socket.Vcc,
942 * pcmcia_loop_config() - loop over configuration options
943 * @p_dev: the struct pcmcia_device which we need to loop for.
944 * @conf_check: function to call for each configuration option.
945 * It gets passed the struct pcmcia_device, the CIS data
946 * describing the configuration option, and private data
947 * being passed to pcmcia_loop_config()
948 * @priv_data: private data to be passed to the conf_check function.
950 * pcmcia_loop_config() loops over all configuration options, and calls
951 * the driver-specific conf_check() for each one, checking whether
952 * it is a valid one. Returns 0 on success or errorcode otherwise.
954 int pcmcia_loop_config(struct pcmcia_device *p_dev,
955 int (*conf_check) (struct pcmcia_device *p_dev,
956 cistpl_cftable_entry_t *cfg,
957 cistpl_cftable_entry_t *dflt,
962 struct pcmcia_cfg_mem *cfg_mem;
965 cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
969 cfg_mem->p_dev = p_dev;
970 cfg_mem->conf_check = conf_check;
971 cfg_mem->priv_data = priv_data;
973 ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
974 CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
975 cfg_mem, pcmcia_do_loop_config);
980 EXPORT_SYMBOL(pcmcia_loop_config);
983 struct pcmcia_loop_mem {
984 struct pcmcia_device *p_dev;
986 int (*loop_tuple) (struct pcmcia_device *p_dev,
992 * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
994 * pcmcia_do_loop_tuple() is the internal callback for the call from
995 * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
996 * by a struct pcmcia_cfg_mem.
998 static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
1000 struct pcmcia_loop_mem *loop = priv;
1002 return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
1006 * pcmcia_loop_tuple() - loop over tuples in the CIS
1007 * @p_dev: the struct pcmcia_device which we need to loop for.
1008 * @code: which CIS code shall we look for?
1009 * @priv_data: private data to be passed to the loop_tuple function.
1010 * @loop_tuple: function to call for each CIS entry of type @function. IT
1011 * gets passed the raw tuple and @priv_data.
1013 * pcmcia_loop_tuple() loops over all CIS entries of type @function, and
1014 * calls the @loop_tuple function for each entry. If the call to @loop_tuple
1015 * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
1017 int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
1018 int (*loop_tuple) (struct pcmcia_device *p_dev,
1023 struct pcmcia_loop_mem loop = {
1025 .loop_tuple = loop_tuple,
1026 .priv_data = priv_data};
1028 return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
1029 &loop, pcmcia_do_loop_tuple);
1031 EXPORT_SYMBOL(pcmcia_loop_tuple);
1034 struct pcmcia_loop_get {
1040 * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
1042 * pcmcia_do_get_tuple() is the internal callback for the call from
1043 * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
1044 * the first tuple, return 0 unconditionally. Create a memory buffer large
1045 * enough to hold the content of the tuple, and fill it with the tuple data.
1046 * The caller is responsible to free the buffer.
1048 static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
1051 struct pcmcia_loop_get *get = priv;
1053 *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
1055 get->len = tuple->TupleDataLen;
1056 memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
1058 dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
1063 * pcmcia_get_tuple() - get first tuple from CIS
1064 * @p_dev: the struct pcmcia_device which we need to loop for.
1065 * @code: which CIS code shall we look for?
1066 * @buf: pointer to store the buffer to.
1068 * pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
1069 * It returns the buffer length (or zero). The caller is responsible to free
1070 * the buffer passed in @buf.
1072 size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
1073 unsigned char **buf)
1075 struct pcmcia_loop_get get = {
1081 pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
1085 EXPORT_SYMBOL(pcmcia_get_tuple);
1089 * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
1091 * pcmcia_do_get_mac() is the internal callback for the call from
1092 * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
1093 * tuple contains a proper LAN_NODE_ID of length 6, and copy the data
1094 * to struct net_device->dev_addr[i].
1096 static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
1099 struct net_device *dev = priv;
1102 if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
1104 if (tuple->TupleDataLen < ETH_ALEN + 2) {
1105 dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
1110 if (tuple->TupleData[1] != ETH_ALEN) {
1111 dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
1114 for (i = 0; i < 6; i++)
1115 dev->dev_addr[i] = tuple->TupleData[i+2];
1120 * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
1121 * @p_dev: the struct pcmcia_device for which we want the address.
1122 * @dev: a properly prepared struct net_device to store the info to.
1124 * pcmcia_get_mac_from_cis() reads out the hardware MAC address from
1125 * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
1126 * must be set up properly by the driver (see examples!).
1128 int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
1130 return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
1132 EXPORT_SYMBOL(pcmcia_get_mac_from_cis);