vserver 1.9.5.x5
[linux-2.6.git] / drivers / pcmcia / i82092.c
1 /* 
2  * Driver for Intel I82092AA PCI-PCMCIA bridge.
3  *
4  * (C) 2001 Red Hat, Inc.
5  *
6  * Author: Arjan Van De Ven <arjanv@redhat.com>
7  * Loosly based on i82365.c from the pcmcia-cs package
8  *
9  * $Id: i82092aa.c,v 1.2 2001/10/23 14:43:34 arjanv Exp $
10  */
11
12 #include <linux/kernel.h>
13 #include <linux/config.h>
14 #include <linux/module.h>
15 #include <linux/pci.h>
16 #include <linux/init.h>
17 #include <linux/workqueue.h>
18 #include <linux/interrupt.h>
19 #include <linux/device.h>
20
21 #include <pcmcia/cs_types.h>
22 #include <pcmcia/ss.h>
23 #include <pcmcia/cs.h>
24
25 #include <asm/system.h>
26 #include <asm/io.h>
27
28 #include "i82092aa.h"
29 #include "i82365.h"
30
31 MODULE_LICENSE("GPL");
32
33 /* PCI core routines */
34 static struct pci_device_id i82092aa_pci_ids[] = {
35         {
36               .vendor = PCI_VENDOR_ID_INTEL,
37               .device = PCI_DEVICE_ID_INTEL_82092AA_0,
38               .subvendor = PCI_ANY_ID,
39               .subdevice = PCI_ANY_ID,
40          },
41          {} 
42 };
43 MODULE_DEVICE_TABLE(pci, i82092aa_pci_ids);
44
45 static int i82092aa_socket_suspend (struct pci_dev *dev, u32 state)
46 {
47         return pcmcia_socket_dev_suspend(&dev->dev, state);
48 }
49
50 static int i82092aa_socket_resume (struct pci_dev *dev)
51 {
52         return pcmcia_socket_dev_resume(&dev->dev);
53 }
54
55 static struct pci_driver i82092aa_pci_drv = {
56         .name           = "i82092aa",
57         .id_table       = i82092aa_pci_ids,
58         .probe          = i82092aa_pci_probe,
59         .remove         = __devexit_p(i82092aa_pci_remove),
60         .suspend        = i82092aa_socket_suspend,
61         .resume         = i82092aa_socket_resume,
62 };
63
64
65 /* the pccard structure and its functions */
66 static struct pccard_operations i82092aa_operations = {
67         .init                   = i82092aa_init,
68         .suspend                = i82092aa_suspend,
69         .get_status             = i82092aa_get_status,
70         .get_socket             = i82092aa_get_socket,
71         .set_socket             = i82092aa_set_socket,
72         .set_io_map             = i82092aa_set_io_map,
73         .set_mem_map            = i82092aa_set_mem_map,
74 };
75
76 /* The card can do upto 4 sockets, allocate a structure for each of them */
77
78 struct socket_info {
79         int     number;
80         int     card_state;     /*  0 = no socket,
81                                     1 = empty socket, 
82                                     2 = card but not initialized,
83                                     3 = operational card */
84         kio_addr_t io_base;     /* base io address of the socket */
85         
86         struct pcmcia_socket socket;
87         struct pci_dev *dev;    /* The PCI device for the socket */
88 };
89
90 #define MAX_SOCKETS 4
91 static struct socket_info sockets[MAX_SOCKETS];
92 static int socket_count;  /* shortcut */                                                                                
93
94
95 static int __devinit i82092aa_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
96 {
97         unsigned char configbyte;
98         int i, ret;
99         
100         enter("i82092aa_pci_probe");
101         
102         if ((ret = pci_enable_device(dev)))
103                 return ret;
104                 
105         pci_read_config_byte(dev, 0x40, &configbyte);  /* PCI Configuration Control */
106         switch(configbyte&6) {
107                 case 0:
108                         socket_count = 2;
109                         break;
110                 case 2:
111                         socket_count = 1;
112                         break;
113                 case 4:
114                 case 6:
115                         socket_count = 4;
116                         break;
117                         
118                 default:
119                         printk(KERN_ERR "i82092aa: Oops, you did something we didn't think of.\n");
120                         ret = -EIO;
121                         goto err_out_disable;
122         }
123         printk(KERN_INFO "i82092aa: configured as a %d socket device.\n", socket_count);
124
125         if (!request_region(pci_resource_start(dev, 0), 2, "i82092aa")) {
126                 ret = -EBUSY;
127                 goto err_out_disable;
128         }
129         
130         for (i = 0;i<socket_count;i++) {
131                 sockets[i].card_state = 1; /* 1 = present but empty */
132                 sockets[i].io_base = pci_resource_start(dev, 0);
133                 sockets[i].socket.features |= SS_CAP_PCCARD;
134                 sockets[i].socket.map_size = 0x1000;
135                 sockets[i].socket.irq_mask = 0;
136                 sockets[i].socket.pci_irq  = dev->irq;
137                 sockets[i].socket.owner = THIS_MODULE;
138
139                 sockets[i].number = i;
140                 
141                 if (card_present(i)) {
142                         sockets[i].card_state = 3;
143                         dprintk(KERN_DEBUG "i82092aa: slot %i is occupied\n",i);
144                 } else {
145                         dprintk(KERN_DEBUG "i82092aa: slot %i is vacant\n",i);
146                 }
147         }
148                 
149         /* Now, specifiy that all interrupts are to be done as PCI interrupts */
150         configbyte = 0xFF; /* bitmask, one bit per event, 1 = PCI interrupt, 0 = ISA interrupt */
151         pci_write_config_byte(dev, 0x50, configbyte); /* PCI Interrupt Routing Register */
152
153         /* Register the interrupt handler */
154         dprintk(KERN_DEBUG "Requesting interrupt %i \n",dev->irq);
155         if ((ret = request_irq(dev->irq, i82092aa_interrupt, SA_SHIRQ, "i82092aa", i82092aa_interrupt))) {
156                 printk(KERN_ERR "i82092aa: Failed to register IRQ %d, aborting\n", dev->irq);
157                 goto err_out_free_res;
158         }
159
160         pci_set_drvdata(dev, &sockets[i].socket);
161
162         for (i = 0; i<socket_count; i++) {
163                 sockets[i].socket.dev.dev = &dev->dev;
164                 sockets[i].socket.ops = &i82092aa_operations;
165                 sockets[i].socket.resource_ops = &pccard_nonstatic_ops;
166                 ret = pcmcia_register_socket(&sockets[i].socket);
167                 if (ret) {
168                         goto err_out_free_sockets;
169                 }
170         }
171
172         leave("i82092aa_pci_probe");
173         return 0;
174
175 err_out_free_sockets:
176         if (i) {
177                 for (i--;i>=0;i--) {
178                         pcmcia_unregister_socket(&sockets[i].socket);
179                 }
180         }
181         free_irq(dev->irq, i82092aa_interrupt);
182 err_out_free_res:
183         release_region(pci_resource_start(dev, 0), 2);
184 err_out_disable:
185         pci_disable_device(dev);
186         return ret;                     
187 }
188
189 static void __devexit i82092aa_pci_remove(struct pci_dev *dev)
190 {
191         struct pcmcia_socket *socket = pci_get_drvdata(dev);
192
193         enter("i82092aa_pci_remove");
194         
195         free_irq(dev->irq, i82092aa_interrupt);
196
197         if (socket)
198                 pcmcia_unregister_socket(socket);
199
200         leave("i82092aa_pci_remove");
201 }
202
203 static DEFINE_SPINLOCK(port_lock);
204
205 /* basic value read/write functions */
206
207 static unsigned char indirect_read(int socket, unsigned short reg)
208 {
209         unsigned short int port;
210         unsigned char val;
211         unsigned long flags;
212         spin_lock_irqsave(&port_lock,flags);
213         reg += socket * 0x40;
214         port = sockets[socket].io_base;
215         outb(reg,port);
216         val = inb(port+1);
217         spin_unlock_irqrestore(&port_lock,flags);
218         return val;
219 }
220
221 #if 0
222 static unsigned short indirect_read16(int socket, unsigned short reg)
223 {
224         unsigned short int port;
225         unsigned short tmp;
226         unsigned long flags;
227         spin_lock_irqsave(&port_lock,flags);
228         reg  = reg + socket * 0x40;
229         port = sockets[socket].io_base;
230         outb(reg,port);
231         tmp = inb(port+1);
232         reg++;
233         outb(reg,port);
234         tmp = tmp | (inb(port+1)<<8);
235         spin_unlock_irqrestore(&port_lock,flags);
236         return tmp;
237 }
238 #endif
239
240 static void indirect_write(int socket, unsigned short reg, unsigned char value)
241 {
242         unsigned short int port;
243         unsigned long flags;
244         spin_lock_irqsave(&port_lock,flags);
245         reg = reg + socket * 0x40;
246         port = sockets[socket].io_base; 
247         outb(reg,port);
248         outb(value,port+1);
249         spin_unlock_irqrestore(&port_lock,flags);
250 }
251
252 static void indirect_setbit(int socket, unsigned short reg, unsigned char mask)
253 {
254         unsigned short int port;
255         unsigned char val;
256         unsigned long flags;
257         spin_lock_irqsave(&port_lock,flags);
258         reg = reg + socket * 0x40;
259         port = sockets[socket].io_base; 
260         outb(reg,port);
261         val = inb(port+1);
262         val |= mask;
263         outb(reg,port);
264         outb(val,port+1);
265         spin_unlock_irqrestore(&port_lock,flags);
266 }
267
268
269 static void indirect_resetbit(int socket, unsigned short reg, unsigned char mask)
270 {
271         unsigned short int port;
272         unsigned char val;
273         unsigned long flags;
274         spin_lock_irqsave(&port_lock,flags);
275         reg = reg + socket * 0x40;
276         port = sockets[socket].io_base; 
277         outb(reg,port);
278         val = inb(port+1);
279         val &= ~mask;
280         outb(reg,port);
281         outb(val,port+1);
282         spin_unlock_irqrestore(&port_lock,flags);
283 }
284
285 static void indirect_write16(int socket, unsigned short reg, unsigned short value)
286 {
287         unsigned short int port;
288         unsigned char val;
289         unsigned long flags;
290         spin_lock_irqsave(&port_lock,flags);
291         reg = reg + socket * 0x40;
292         port = sockets[socket].io_base; 
293         
294         outb(reg,port);
295         val = value & 255;
296         outb(val,port+1);
297         
298         reg++;
299         
300         outb(reg,port);
301         val = value>>8;
302         outb(val,port+1);
303         spin_unlock_irqrestore(&port_lock,flags);
304 }
305
306 /* simple helper functions */
307 /* External clock time, in nanoseconds.  120 ns = 8.33 MHz */
308 static int cycle_time = 120;
309
310 static int to_cycles(int ns)
311 {
312         if (cycle_time!=0)
313                 return ns/cycle_time;
314         else
315                 return 0;
316 }
317     
318
319 /* Interrupt handler functionality */
320
321 static irqreturn_t i82092aa_interrupt(int irq, void *dev, struct pt_regs *regs)
322 {
323         int i;
324         int loopcount = 0;
325         int handled = 0;
326
327         unsigned int events, active=0;
328         
329 /*      enter("i82092aa_interrupt");*/
330         
331         while (1) {
332                 loopcount++;
333                 if (loopcount>20) {
334                         printk(KERN_ERR "i82092aa: infinite eventloop in interrupt \n");
335                         break;
336                 }
337                 
338                 active = 0;
339                 
340                 for (i=0;i<socket_count;i++) {
341                         int csc;
342                         if (sockets[i].card_state==0) /* Inactive socket, should not happen */
343                                 continue;
344                         
345                         csc = indirect_read(i,I365_CSC); /* card status change register */
346                         
347                         if (csc==0)  /* no events on this socket */
348                                 continue;
349                         handled = 1;
350                         events = 0;
351                          
352                         if (csc & I365_CSC_DETECT) {
353                                 events |= SS_DETECT;
354                                 printk("Card detected in socket %i!\n",i);
355                          }
356                         
357                         if (indirect_read(i,I365_INTCTL) & I365_PC_IOCARD) { 
358                                 /* For IO/CARDS, bit 0 means "read the card" */
359                                 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; 
360                         } else {
361                                 /* Check for battery/ready events */
362                                 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
363                                 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
364                                 events |= (csc & I365_CSC_READY) ? SS_READY : 0;
365                         }
366                         
367                         if (events) {
368                                 pcmcia_parse_events(&sockets[i].socket, events);
369                         }
370                         active |= events;
371                 }
372                                 
373                 if (active==0) /* no more events to handle */
374                         break;                          
375                 
376         }
377         return IRQ_RETVAL(handled);
378 /*      leave("i82092aa_interrupt");*/
379 }
380
381
382
383 /* socket functions */
384
385 static int card_present(int socketno)
386 {       
387         unsigned int val;
388         enter("card_present");
389         
390         if ((socketno<0) || (socketno >= MAX_SOCKETS))
391                 return 0;
392         if (sockets[socketno].io_base == 0)
393                 return 0;
394
395                 
396         val = indirect_read(socketno, 1); /* Interface status register */
397         if ((val&12)==12) {
398                 leave("card_present 1");
399                 return 1;
400         }
401                 
402         leave("card_present 0");
403         return 0;
404 }
405
406 static void set_bridge_state(int sock)
407 {
408         enter("set_bridge_state");
409         indirect_write(sock, I365_GBLCTL,0x00);
410         indirect_write(sock, I365_GENCTL,0x00);
411         
412         indirect_setbit(sock, I365_INTCTL,0x08);
413         leave("set_bridge_state");
414 }
415
416
417
418
419
420       
421 static int i82092aa_init(struct pcmcia_socket *sock)
422 {
423         int i;
424         struct resource res = { .start = 0, .end = 0x0fff };
425         pccard_io_map io = { 0, 0, 0, 0, 1 };
426         pccard_mem_map mem = { .res = &res, };
427         
428         enter("i82092aa_init");
429                         
430         for (i = 0; i < 2; i++) {
431                 io.map = i;
432                 i82092aa_set_io_map(sock, &io);
433         }
434         for (i = 0; i < 5; i++) {
435                 mem.map = i;
436                 i82092aa_set_mem_map(sock, &mem);
437         }
438         
439         leave("i82092aa_init");
440         return 0;
441 }
442                                                                                                                                                                                                                                               
443 static int i82092aa_suspend(struct pcmcia_socket *sock)
444 {
445         int retval;
446         enter("i82092aa_suspend");
447         retval =  i82092aa_set_socket(sock, &dead_socket);
448         leave("i82092aa_suspend");
449         return retval;
450 }
451        
452 static int i82092aa_get_status(struct pcmcia_socket *socket, u_int *value)
453 {
454         unsigned int sock = container_of(socket, struct socket_info, socket)->number;
455         unsigned int status;
456         
457         enter("i82092aa_get_status");
458         
459         status = indirect_read(sock,I365_STATUS); /* Interface Status Register */
460         *value = 0;
461         
462         if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
463                 *value |= SS_DETECT;
464         }
465                 
466         /* IO cards have a different meaning of bits 0,1 */
467         /* Also notice the inverse-logic on the bits */
468          if (indirect_read(sock, I365_INTCTL) & I365_PC_IOCARD) {
469                 /* IO card */
470                 if (!(status & I365_CS_STSCHG))
471                         *value |= SS_STSCHG;
472          } else { /* non I/O card */
473                 if (!(status & I365_CS_BVD1))
474                         *value |= SS_BATDEAD;
475                 if (!(status & I365_CS_BVD2))
476                         *value |= SS_BATWARN;
477                         
478          }
479          
480          if (status & I365_CS_WRPROT)
481                 (*value) |= SS_WRPROT;  /* card is write protected */
482          
483          if (status & I365_CS_READY)
484                 (*value) |= SS_READY;    /* card is not busy */
485                 
486          if (status & I365_CS_POWERON)
487                 (*value) |= SS_POWERON;  /* power is applied to the card */
488
489
490         leave("i82092aa_get_status");
491         return 0;
492 }
493
494
495 static int i82092aa_get_socket(struct pcmcia_socket *socket, socket_state_t *state) 
496 {
497         unsigned int sock = container_of(socket, struct socket_info, socket)->number;
498         unsigned char reg,vcc,vpp;
499         
500         enter("i82092aa_get_socket");
501         state->flags    = 0;
502         state->Vcc      = 0;
503         state->Vpp      = 0;
504         state->io_irq   = 0;
505         state->csc_mask = 0;
506
507         /* First the power status of the socket */
508         reg = indirect_read(sock,I365_POWER); /* PCTRL - Power Control Register */
509
510         if (reg & I365_PWR_AUTO)
511                 state->flags |= SS_PWR_AUTO;  /* Automatic Power Switch */
512                 
513         if (reg & I365_PWR_OUT)
514                 state->flags |= SS_OUTPUT_ENA; /* Output signals are enabled */
515                 
516         vcc = reg & I365_VCC_MASK;    vpp = reg & I365_VPP1_MASK;
517         
518         if (reg & I365_VCC_5V) { /* Can still be 3.3V, in this case the Vcc value will be overwritten later */
519                 state->Vcc = 50;
520                 
521                 if (vpp == I365_VPP1_5V)
522                         state->Vpp = 50;
523                 if (vpp == I365_VPP1_12V)
524                         state->Vpp = 120;
525                         
526         }
527         
528         if ((reg & I365_VCC_3V)==I365_VCC_3V)
529                 state->Vcc = 33;
530         
531         
532         /* Now the IO card, RESET flags and IO interrupt */
533         
534         reg = indirect_read(sock, I365_INTCTL); /* IGENC, Interrupt and General Control */
535         
536         if ((reg & I365_PC_RESET)==0)
537                 state->flags |= SS_RESET;
538         if (reg & I365_PC_IOCARD) 
539                 state->flags |= SS_IOCARD; /* This is an IO card */
540         
541         /* Set the IRQ number */
542         if (sockets[sock].dev!=NULL)
543                 state->io_irq = sockets[sock].dev->irq;
544         
545         /* Card status change */
546         reg = indirect_read(sock, I365_CSCINT); /* CSCICR, Card Status Change Interrupt Configuration */
547         
548         if (reg & I365_CSC_DETECT) 
549                 state->csc_mask |= SS_DETECT; /* Card detect is enabled */
550         
551         if (state->flags & SS_IOCARD) {/* IO Cards behave different */
552                 if (reg & I365_CSC_STSCHG)
553                         state->csc_mask |= SS_STSCHG;
554         } else {
555                 if (reg & I365_CSC_BVD1) 
556                         state->csc_mask |= SS_BATDEAD;
557                 if (reg & I365_CSC_BVD2) 
558                         state->csc_mask |= SS_BATWARN;
559                 if (reg & I365_CSC_READY) 
560                         state->csc_mask |= SS_READY;
561         }
562                 
563         leave("i82092aa_get_socket");
564         return 0;
565 }
566
567 static int i82092aa_set_socket(struct pcmcia_socket *socket, socket_state_t *state) 
568 {
569         unsigned int sock = container_of(socket, struct socket_info, socket)->number;
570         unsigned char reg;
571         
572         enter("i82092aa_set_socket");
573         
574         /* First, set the global controller options */
575         
576         set_bridge_state(sock);
577         
578         /* Values for the IGENC register */
579         
580         reg = 0;
581         if (!(state->flags & SS_RESET))         /* The reset bit has "inverse" logic */
582                 reg = reg | I365_PC_RESET;  
583         if (state->flags & SS_IOCARD) 
584                 reg = reg | I365_PC_IOCARD;
585                 
586         indirect_write(sock,I365_INTCTL,reg); /* IGENC, Interrupt and General Control Register */
587         
588         /* Power registers */
589         
590         reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
591         
592         if (state->flags & SS_PWR_AUTO) {
593                 printk("Auto power\n");
594                 reg |= I365_PWR_AUTO;   /* automatic power mngmnt */
595         }
596         if (state->flags & SS_OUTPUT_ENA) {
597                 printk("Power Enabled \n");
598                 reg |= I365_PWR_OUT;    /* enable power */
599         }
600         
601         switch (state->Vcc) {
602                 case 0: 
603                         break;
604                 case 50: 
605                         printk("setting voltage to Vcc to 5V on socket %i\n",sock);
606                         reg |= I365_VCC_5V;
607                         break;
608                 default:
609                         printk("i82092aa: i82092aa_set_socket called with invalid VCC power value: %i ", state->Vcc);
610                         leave("i82092aa_set_socket");
611                         return -EINVAL;
612         }
613         
614         
615         switch (state->Vpp) {
616                 case 0: 
617                         printk("not setting Vpp on socket %i\n",sock);
618                         break;
619                 case 50: 
620                         printk("setting Vpp to 5.0 for socket %i\n",sock);
621                         reg |= I365_VPP1_5V | I365_VPP2_5V;
622                         break;
623                 case 120: 
624                         printk("setting Vpp to 12.0\n");
625                         reg |= I365_VPP1_12V | I365_VPP2_12V;
626                         break;
627                 default:
628                         printk("i82092aa: i82092aa_set_socket called with invalid VPP power value: %i ", state->Vcc);
629                         leave("i82092aa_set_socket");
630                         return -EINVAL;
631         }
632         
633         if (reg != indirect_read(sock,I365_POWER)) /* only write if changed */
634                 indirect_write(sock,I365_POWER,reg);
635                 
636         /* Enable specific interrupt events */
637         
638         reg = 0x00;
639         if (state->csc_mask & SS_DETECT) {
640                 reg |= I365_CSC_DETECT;
641         }
642         if (state->flags & SS_IOCARD) {
643                 if (state->csc_mask & SS_STSCHG)
644                         reg |= I365_CSC_STSCHG;
645         } else {
646                 if (state->csc_mask & SS_BATDEAD) 
647                         reg |= I365_CSC_BVD1;
648                 if (state->csc_mask & SS_BATWARN) 
649                         reg |= I365_CSC_BVD2;
650                 if (state->csc_mask & SS_READY) 
651                         reg |= I365_CSC_READY; 
652                                         
653         }
654         
655         /* now write the value and clear the (probably bogus) pending stuff by doing a dummy read*/
656         
657         indirect_write(sock,I365_CSCINT,reg);
658         (void)indirect_read(sock,I365_CSC);
659
660         leave("i82092aa_set_socket");
661         return 0;
662 }
663
664 static int i82092aa_set_io_map(struct pcmcia_socket *socket, struct pccard_io_map *io)
665 {
666         unsigned int sock = container_of(socket, struct socket_info, socket)->number;
667         unsigned char map, ioctl;
668         
669         enter("i82092aa_set_io_map");
670         
671         map = io->map;
672         
673         /* Check error conditions */    
674         if (map > 1) {
675                 leave("i82092aa_set_io_map with invalid map");
676                 return -EINVAL;
677         }
678         if ((io->start > 0xffff) || (io->stop > 0xffff) || (io->stop < io->start)){
679                 leave("i82092aa_set_io_map with invalid io");
680                 return -EINVAL;
681         }
682
683         /* Turn off the window before changing anything */ 
684         if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_IO(map))
685                 indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_IO(map));
686
687 /*      printk("set_io_map: Setting range to %x - %x \n",io->start,io->stop);  */
688         
689         /* write the new values */
690         indirect_write16(sock,I365_IO(map)+I365_W_START,io->start);             
691         indirect_write16(sock,I365_IO(map)+I365_W_STOP,io->stop);               
692                         
693         ioctl = indirect_read(sock,I365_IOCTL) & ~I365_IOCTL_MASK(map);
694         
695         if (io->flags & (MAP_16BIT|MAP_AUTOSZ))
696                 ioctl |= I365_IOCTL_16BIT(map);
697                 
698         indirect_write(sock,I365_IOCTL,ioctl);
699         
700         /* Turn the window back on if needed */
701         if (io->flags & MAP_ACTIVE)
702                 indirect_setbit(sock,I365_ADDRWIN,I365_ENA_IO(map));
703                         
704         leave("i82092aa_set_io_map");   
705         return 0;
706 }
707
708 static int i82092aa_set_mem_map(struct pcmcia_socket *socket, struct pccard_mem_map *mem)
709 {
710         struct socket_info *sock_info = container_of(socket, struct socket_info, socket);
711         unsigned int sock = sock_info->number;
712         struct pci_bus_region region;
713         unsigned short base, i;
714         unsigned char map;
715         
716         enter("i82092aa_set_mem_map");
717
718         pcibios_resource_to_bus(sock_info->dev, &region, mem->res);
719         
720         map = mem->map;
721         if (map > 4) {
722                 leave("i82092aa_set_mem_map: invalid map");
723                 return -EINVAL;
724         }
725         
726         
727         if ( (mem->card_start > 0x3ffffff) || (region.start > region.end) ||
728              (mem->speed > 1000) ) {
729                 leave("i82092aa_set_mem_map: invalid address / speed");
730                 printk("invalid mem map for socket %i : %lx to %lx with a start of %x \n",sock,region.start, region.end, mem->card_start);
731                 return -EINVAL;
732         }
733         
734         /* Turn off the window before changing anything */
735         if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
736                       indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
737                          
738                          
739 /*      printk("set_mem_map: Setting map %i range to %x - %x on socket %i, speed is %i, active = %i \n",map, region.start,region.end,sock,mem->speed,mem->flags & MAP_ACTIVE);  */
740
741         /* write the start address */
742         base = I365_MEM(map);
743         i = (region.start >> 12) & 0x0fff;
744         if (mem->flags & MAP_16BIT) 
745                 i |= I365_MEM_16BIT;
746         if (mem->flags & MAP_0WS)
747                 i |= I365_MEM_0WS;      
748         indirect_write16(sock,base+I365_W_START,i);
749                                
750         /* write the stop address */
751         
752         i= (region.end >> 12) & 0x0fff;
753         switch (to_cycles(mem->speed)) {
754                 case 0:
755                         break;
756                 case 1:
757                         i |= I365_MEM_WS0;
758                         break;
759                 case 2:
760                         i |= I365_MEM_WS1;
761                         break;
762                 default:
763                         i |= I365_MEM_WS1 | I365_MEM_WS0;
764                         break;
765         }
766         
767         indirect_write16(sock,base+I365_W_STOP,i);
768         
769         /* card start */
770         
771         i = ((mem->card_start - region.start) >> 12) & 0x3fff;
772         if (mem->flags & MAP_WRPROT)
773                 i |= I365_MEM_WRPROT;
774         if (mem->flags & MAP_ATTRIB) {
775 /*              printk("requesting attribute memory for socket %i\n",sock);*/
776                 i |= I365_MEM_REG;
777         } else {
778 /*              printk("requesting normal memory for socket %i\n",sock);*/
779         }
780         indirect_write16(sock,base+I365_W_OFF,i);
781         
782         /* Enable the window if necessary */
783         if (mem->flags & MAP_ACTIVE)
784                 indirect_setbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
785                     
786         leave("i82092aa_set_mem_map");
787         return 0;
788 }
789
790 static int i82092aa_module_init(void)
791 {
792         enter("i82092aa_module_init");
793         pci_register_driver(&i82092aa_pci_drv);
794         leave("i82092aa_module_init");
795         return 0;
796 }
797
798 static void i82092aa_module_exit(void)
799 {
800         enter("i82092aa_module_exit");
801         pci_unregister_driver(&i82092aa_pci_drv);
802         if (sockets[0].io_base>0)
803                          release_region(sockets[0].io_base, 2);
804         leave("i82092aa_module_exit");
805 }
806
807 module_init(i82092aa_module_init);
808 module_exit(i82092aa_module_exit);
809