1 /*****************************************************************************/
4 * comemlite.c -- PCI access code for embedded CO-MEM Lite PCI controller.
6 * (C) Copyright 1999-2003, Greg Ungerer (gerg@snapgear.com).
7 * (C) Copyright 2000, Lineo (www.lineo.com)
10 /*****************************************************************************/
12 #include <linux/kernel.h>
13 #include <linux/types.h>
14 #include <linux/pci.h>
15 #include <linux/ptrace.h>
16 #include <linux/spinlock.h>
17 #include <linux/interrupt.h>
18 #include <linux/sched.h>
19 #include <asm/coldfire.h>
20 #include <asm/mcfsim.h>
22 #include <asm/anchor.h>
28 /*****************************************************************************/
31 * Debug configuration defines. DEBUGRES sets debugging output for
32 * the resource allocation phase. DEBUGPCI traces on pcibios_ function
33 * calls, and DEBUGIO traces all accesses to devices on the PCI bus.
35 /*#define DEBUGRES 1*/
36 /*#define DEBUGPCI 1*/
39 /*****************************************************************************/
42 * PCI markers for bus present and active slots.
44 int pci_bus_is_present = 0;
45 unsigned long pci_slotmask = 0;
48 * We may or may not need to swap the bytes of PCI bus tranfers.
49 * The endianess is re-roder automatically by the CO-MEM, but it
50 * will get the wrong byte order for a pure data stream.
52 #define pci_byteswap 0
56 * Resource tracking. The CO-MEM part creates a virtual address
57 * space that all the PCI devices live in - it is not in any way
58 * directly mapped into the ColdFire address space. So we can
59 * really assign any resources we like to devices, as long as
60 * they do not clash with other PCI devices.
62 unsigned int pci_iobase = PCIBIOS_MIN_IO; /* Arbitrary start address */
63 unsigned int pci_membase = PCIBIOS_MIN_MEM; /* Arbitrary start address */
65 #define PCI_MINIO 0x100 /* 256 byte minimum I/O */
66 #define PCI_MINMEM 0x00010000 /* 64k minimum chunk */
69 * The CO-MEM's shared memory segment is visible inside the PCI
70 * memory address space. We need to keep track of the address that
71 * this is mapped at, to setup the bus masters pointers.
73 unsigned int pci_shmemaddr;
75 /*****************************************************************************/
77 void pci_interrupt(int irq, void *id, struct pt_regs *fp);
79 /*****************************************************************************/
82 * Some platforms have custom ways of reseting the PCI bus.
85 void pci_resetbus(void)
91 printk(KERN_DEBUG "pci_resetbus()\n");
94 *((volatile unsigned short *) (MCF_MBAR+MCFSIM_PADDR)) |= eLIA_PCIRESET;
95 for (i = 0; (i < 1000); i++) {
96 *((volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT)) =
97 (ppdata | eLIA_PCIRESET);
101 *((volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT)) = ppdata;
105 /*****************************************************************************/
107 int pcibios_assign_resource_slot(int slot)
109 volatile unsigned long *rp;
110 volatile unsigned char *ip;
111 unsigned int idsel, addr, val, align, i;
115 printk(KERN_INFO "pcibios_assign_resource_slot(slot=%x)\n", slot);
118 rp = (volatile unsigned long *) COMEM_BASE;
119 idsel = COMEM_DA_ADDR(0x1 << (slot + 16));
121 /* Try to assign resource to each BAR */
122 for (bar = 0; (bar < 6); bar++) {
123 addr = COMEM_PCIBUS + PCI_BASE_ADDRESS_0 + (bar * 4);
124 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
125 val = rp[LREG(addr)];
127 printk(KERN_DEBUG "-----------------------------------"
128 "-------------------------------------\n");
129 printk(KERN_DEBUG "BAR[%d]: read=%08x ", bar, val);
132 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
133 rp[LREG(addr)] = 0xffffffff;
135 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
136 val = rp[LREG(addr)];
138 printk(KERN_DEBUG "write=%08x ", val);
142 printk(KERN_DEBUG "\n");
147 /* Determine space required by BAR */
148 /* FIXME: this should go backwords from 0x80000000... */
149 for (i = 0; (i < 32); i++) {
150 if ((0x1 << i) & (val & 0xfffffffc))
155 printk(KERN_DEBUG "size=%08x(%d)\n", (0x1 << i), i);
159 /* Assign a resource */
160 if (val & PCI_BASE_ADDRESS_SPACE_IO) {
164 printk(KERN_DEBUG "BAR[%d]: IO size=%08x iobase=%08x\n",
169 val = 0 | PCI_BASE_ADDRESS_SPACE_IO;
171 printk(KERN_DEBUG "BAR[%d]: too big for IO??\n", bar);
174 /* Check for un-alignment */
175 if ((align = pci_iobase % i))
176 pci_iobase += (i - align);
177 val = pci_iobase | PCI_BASE_ADDRESS_SPACE_IO;
184 printk(KERN_DEBUG "BAR[%d]: MEMORY size=%08x membase=%08x\n",
185 bar, i, pci_membase);
187 /* Check for un-alignment */
188 if ((align = pci_membase % i))
189 pci_membase += (i - align);
190 val = pci_membase | PCI_BASE_ADDRESS_SPACE_MEMORY;
194 /* Write resource back into BAR register */
195 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
196 rp[LREG(addr)] = val;
198 printk(KERN_DEBUG "BAR[%d]: assigned bar=%08x\n", bar, val);
203 printk(KERN_DEBUG "-----------------------------------"
204 "-------------------------------------\n");
207 /* Assign IRQ if one is wanted... */
208 ip = (volatile unsigned char *) (COMEM_BASE + COMEM_PCIBUS);
209 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
211 addr = (PCI_INTERRUPT_PIN & 0xfc) + (~PCI_INTERRUPT_PIN & 0x03);
213 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
214 addr = (PCI_INTERRUPT_LINE & 0xfc)+(~PCI_INTERRUPT_LINE & 0x03);
217 printk(KERN_DEBUG "IRQ LINE=25\n");
224 /*****************************************************************************/
226 int pcibios_enable_slot(int slot)
228 volatile unsigned long *rp;
229 volatile unsigned short *wp;
230 unsigned int idsel, addr;
234 printk(KERN_DEBUG "pcibios_enbale_slot(slot=%x)\n", slot);
237 rp = (volatile unsigned long *) COMEM_BASE;
238 wp = (volatile unsigned short *) COMEM_BASE;
239 idsel = COMEM_DA_ADDR(0x1 << (slot + 16));
241 /* Get current command settings */
242 addr = COMEM_PCIBUS + PCI_COMMAND;
243 addr = (addr & ~0x3) + (~addr & 0x02);
244 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
245 cmd = wp[WREG(addr)];
246 /*val = ((val & 0xff) << 8) | ((val >> 8) & 0xff);*/
248 /* Enable I/O and memory accesses to this device */
249 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
250 cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
251 wp[WREG(addr)] = cmd;
256 /*****************************************************************************/
258 void pcibios_assign_resources(void)
260 volatile unsigned long *rp;
261 unsigned long sel, id;
264 rp = (volatile unsigned long *) COMEM_BASE;
267 * Do a quick scan of the PCI bus and see what is here.
269 for (slot = COMEM_MINDEV; (slot <= COMEM_MAXDEV); slot++) {
270 sel = COMEM_DA_CFGRD | COMEM_DA_ADDR(0x1 << (slot + 16));
271 rp[LREG(COMEM_DAHBASE)] = sel;
272 rp[LREG(COMEM_PCIBUS)] = 0; /* Clear bus */
273 id = rp[LREG(COMEM_PCIBUS)];
274 if ((id != 0) && ((id & 0xffff0000) != (sel & 0xffff0000))) {
275 printk(KERN_INFO "PCI: slot=%d id=%08x\n", slot, (int) id);
276 pci_slotmask |= 0x1 << slot;
277 pcibios_assign_resource_slot(slot);
278 pcibios_enable_slot(slot);
283 /*****************************************************************************/
285 int pcibios_init(void)
287 volatile unsigned long *rp;
288 unsigned long sel, id;
292 printk(KERN_DEBUG "pcibios_init()\n");
298 * Do some sort of basic check to see if the CO-MEM part
299 * is present... This works ok, but I think we really need
300 * something better...
302 rp = (volatile unsigned long *) COMEM_BASE;
303 if ((rp[LREG(COMEM_LBUSCFG)] & 0xff) != 0x50) {
304 printk(KERN_INFO "PCI: no PCI bus present\n");
308 #ifdef COMEM_BRIDGEDEV
310 * Setup the PCI bridge device first. It needs resources too,
311 * so that bus masters can get to its shared memory.
313 slot = COMEM_BRIDGEDEV;
314 sel = COMEM_DA_CFGRD | COMEM_DA_ADDR(0x1 << (slot + 16));
315 rp[LREG(COMEM_DAHBASE)] = sel;
316 rp[LREG(COMEM_PCIBUS)] = 0; /* Clear bus */
317 id = rp[LREG(COMEM_PCIBUS)];
318 if ((id == 0) || ((id & 0xffff0000) == (sel & 0xffff0000))) {
319 printk(KERN_INFO "PCI: no PCI bus bridge present\n");
323 printk(KERN_INFO "PCI: bridge device at slot=%d id=%08x\n", slot, (int) id);
324 pci_slotmask |= 0x1 << slot;
325 pci_shmemaddr = pci_membase;
326 pcibios_assign_resource_slot(slot);
327 pcibios_enable_slot(slot);
330 pci_bus_is_present = 1;
332 /* Get PCI irq for local vectoring */
333 if (request_irq(COMEM_IRQ, pci_interrupt, 0, "PCI bridge", NULL)) {
334 printk(KERN_WARNING "PCI: failed to acquire interrupt %d\n", COMEM_IRQ);
336 mcf_autovector(COMEM_IRQ);
339 pcibios_assign_resources();
344 /*****************************************************************************/
346 char *pcibios_setup(char *option)
348 /* Nothing for us to handle. */
351 /*****************************************************************************/
353 void pcibios_fixup_bus(struct pci_bus *b)
357 /*****************************************************************************/
359 void pcibios_align_resource(void *data, struct resource *res,
360 resource_size_t size, resource_size_t align)
364 /*****************************************************************************/
366 int pcibios_enable_device(struct pci_dev *dev, int mask)
370 slot = PCI_SLOT(dev->devfn);
371 if ((dev->bus == 0) && (pci_slotmask & (1 << slot)))
372 pcibios_enable_slot(slot);
376 /*****************************************************************************/
378 void pcibios_update_resource(struct pci_dev *dev, struct resource *root, struct resource *r, int resource)
380 printk(KERN_WARNING "%s(%d): no support for changing PCI resources...\n",
385 /*****************************************************************************/
388 * Local routines to interrcept the standard I/O and vector handling
389 * code. Don't include this 'till now - initialization code above needs
390 * access to the real code too.
392 #include <asm/mcfpci.h>
394 /*****************************************************************************/
396 void pci_outb(unsigned char val, unsigned int addr)
398 volatile unsigned long *rp;
399 volatile unsigned char *bp;
402 printk(KERN_DEBUG "pci_outb(val=%02x,addr=%x)\n", val, addr);
405 rp = (volatile unsigned long *) COMEM_BASE;
406 bp = (volatile unsigned char *) COMEM_BASE;
407 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(addr);
408 addr = (addr & ~0x3) + (~addr & 0x03);
409 bp[(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))] = val;
412 /*****************************************************************************/
414 void pci_outw(unsigned short val, unsigned int addr)
416 volatile unsigned long *rp;
417 volatile unsigned short *sp;
420 printk(KERN_DEBUG "pci_outw(val=%04x,addr=%x)\n", val, addr);
423 rp = (volatile unsigned long *) COMEM_BASE;
424 sp = (volatile unsigned short *) COMEM_BASE;
425 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(addr);
426 addr = (addr & ~0x3) + (~addr & 0x02);
428 val = ((val & 0xff) << 8) | ((val >> 8) & 0xff);
429 sp[WREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))] = val;
432 /*****************************************************************************/
434 void pci_outl(unsigned int val, unsigned int addr)
436 volatile unsigned long *rp;
437 volatile unsigned int *lp;
440 printk(KERN_DEBUG "pci_outl(val=%08x,addr=%x)\n", val, addr);
443 rp = (volatile unsigned long *) COMEM_BASE;
444 lp = (volatile unsigned int *) COMEM_BASE;
445 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(addr);
448 val = (val << 24) | ((val & 0x0000ff00) << 8) |
449 ((val & 0x00ff0000) >> 8) | (val >> 24);
451 lp[LREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))] = val;
454 /*****************************************************************************/
456 unsigned long pci_blmask[] = {
463 unsigned char pci_inb(unsigned int addr)
465 volatile unsigned long *rp;
466 volatile unsigned char *bp;
471 printk(KERN_DEBUG "pci_inb(addr=%x)\n", addr);
474 rp = (volatile unsigned long *) COMEM_BASE;
475 bp = (volatile unsigned char *) COMEM_BASE;
477 r = COMEM_DA_IORD | COMEM_DA_ADDR(addr) | pci_blmask[(addr & 0x3)];
478 rp[LREG(COMEM_DAHBASE)] = r;
480 addr = (addr & ~0x3) + (~addr & 0x3);
481 val = bp[(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))];
485 /*****************************************************************************/
487 unsigned long pci_bwmask[] = {
494 unsigned short pci_inw(unsigned int addr)
496 volatile unsigned long *rp;
497 volatile unsigned short *sp;
502 printk(KERN_DEBUG "pci_inw(addr=%x)", addr);
505 rp = (volatile unsigned long *) COMEM_BASE;
506 r = COMEM_DA_IORD | COMEM_DA_ADDR(addr) | pci_bwmask[(addr & 0x3)];
507 rp[LREG(COMEM_DAHBASE)] = r;
509 sp = (volatile unsigned short *) COMEM_BASE;
510 addr = (addr & ~0x3) + (~addr & 0x02);
511 val = sp[WREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))];
513 val = ((val & 0xff) << 8) | ((val >> 8) & 0xff);
515 printk(KERN_DEBUG "=%04x\n", val);
520 /*****************************************************************************/
522 unsigned int pci_inl(unsigned int addr)
524 volatile unsigned long *rp;
525 volatile unsigned int *lp;
529 printk(KERN_DEBUG "pci_inl(addr=%x)", addr);
532 rp = (volatile unsigned long *) COMEM_BASE;
533 lp = (volatile unsigned int *) COMEM_BASE;
534 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(addr);
535 val = lp[LREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))];
538 val = (val << 24) | ((val & 0x0000ff00) << 8) |
539 ((val & 0x00ff0000) >> 8) | (val >> 24);
542 printk(KERN_DEBUG "=%08x\n", val);
547 /*****************************************************************************/
549 void pci_outsb(void *addr, void *buf, int len)
551 volatile unsigned long *rp;
552 volatile unsigned char *bp;
553 unsigned char *dp = (unsigned char *) buf;
554 unsigned int a = (unsigned int) addr;
557 printk(KERN_DEBUG "pci_outsb(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
560 rp = (volatile unsigned long *) COMEM_BASE;
561 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(a);
563 a = (a & ~0x3) + (~a & 0x03);
564 bp = (volatile unsigned char *)
565 (COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
571 /*****************************************************************************/
573 void pci_outsw(void *addr, void *buf, int len)
575 volatile unsigned long *rp;
576 volatile unsigned short *wp;
577 unsigned short w, *dp = (unsigned short *) buf;
578 unsigned int a = (unsigned int) addr;
581 printk(KERN_DEBUG "pci_outsw(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
584 rp = (volatile unsigned long *) COMEM_BASE;
585 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(a);
587 a = (a & ~0x3) + (~a & 0x2);
588 wp = (volatile unsigned short *)
589 (COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
594 w = ((w & 0xff) << 8) | ((w >> 8) & 0xff);
599 /*****************************************************************************/
601 void pci_outsl(void *addr, void *buf, int len)
603 volatile unsigned long *rp;
604 volatile unsigned long *lp;
605 unsigned long l, *dp = (unsigned long *) buf;
606 unsigned int a = (unsigned int) addr;
609 printk(KERN_DEBUG "pci_outsl(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
612 rp = (volatile unsigned long *) COMEM_BASE;
613 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(a);
615 lp = (volatile unsigned long *)
616 (COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
621 l = (l << 24) | ((l & 0x0000ff00) << 8) |
622 ((l & 0x00ff0000) >> 8) | (l >> 24);
627 /*****************************************************************************/
629 void pci_insb(void *addr, void *buf, int len)
631 volatile unsigned long *rp;
632 volatile unsigned char *bp;
633 unsigned char *dp = (unsigned char *) buf;
634 unsigned int a = (unsigned int) addr;
637 printk(KERN_DEBUG "pci_insb(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
640 rp = (volatile unsigned long *) COMEM_BASE;
641 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(a);
643 a = (a & ~0x3) + (~a & 0x03);
644 bp = (volatile unsigned char *)
645 (COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
651 /*****************************************************************************/
653 void pci_insw(void *addr, void *buf, int len)
655 volatile unsigned long *rp;
656 volatile unsigned short *wp;
657 unsigned short w, *dp = (unsigned short *) buf;
658 unsigned int a = (unsigned int) addr;
661 printk(KERN_DEBUG "pci_insw(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
664 rp = (volatile unsigned long *) COMEM_BASE;
665 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(a);
667 a = (a & ~0x3) + (~a & 0x2);
668 wp = (volatile unsigned short *)
669 (COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
674 w = ((w & 0xff) << 8) | ((w >> 8) & 0xff);
679 /*****************************************************************************/
681 void pci_insl(void *addr, void *buf, int len)
683 volatile unsigned long *rp;
684 volatile unsigned long *lp;
685 unsigned long l, *dp = (unsigned long *) buf;
686 unsigned int a = (unsigned int) addr;
689 printk(KERN_DEBUG "pci_insl(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
692 rp = (volatile unsigned long *) COMEM_BASE;
693 rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(a);
695 lp = (volatile unsigned long *)
696 (COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
701 l = (l << 24) | ((l & 0x0000ff00) << 8) |
702 ((l & 0x00ff0000) >> 8) | (l >> 24);
707 /*****************************************************************************/
709 struct pci_localirqlist {
710 void (*handler)(int, void *, struct pt_regs *);
715 struct pci_localirqlist pci_irqlist[COMEM_MAXPCI];
717 /*****************************************************************************/
719 int pci_request_irq(unsigned int irq,
720 void (*handler)(int, void *, struct pt_regs *),
721 unsigned long flags, const char *device, void *dev_id)
726 printk(KERN_DEBUG "pci_request_irq(irq=%d,handler=%x,flags=%x,device=%s,"
727 "dev_id=%x)\n", irq, (int) handler, (int) flags, device,
731 /* Check if this interrupt handler is already lodged */
732 for (i = 0; (i < COMEM_MAXPCI); i++) {
733 if (pci_irqlist[i].handler == handler)
737 /* Find a free spot to put this handler */
738 for (i = 0; (i < COMEM_MAXPCI); i++) {
739 if (pci_irqlist[i].handler == 0) {
740 pci_irqlist[i].handler = handler;
741 pci_irqlist[i].device = device;
742 pci_irqlist[i].dev_id = dev_id;
751 /*****************************************************************************/
753 void pci_free_irq(unsigned int irq, void *dev_id)
758 printk(KERN_DEBUG "pci_free_irq(irq=%d,dev_id=%x)\n", irq, (int) dev_id);
761 if (dev_id == (void *) NULL)
764 /* Check if this interrupt handler is lodged */
765 for (i = 0; (i < COMEM_MAXPCI); i++) {
766 if (pci_irqlist[i].dev_id == dev_id) {
767 pci_irqlist[i].handler = NULL;
768 pci_irqlist[i].device = NULL;
769 pci_irqlist[i].dev_id = NULL;
775 /*****************************************************************************/
777 void pci_interrupt(int irq, void *id, struct pt_regs *fp)
782 printk(KERN_DEBUG "pci_interrupt(irq=%d,id=%x,fp=%x)\n", irq, (int) id, (int) fp);
785 for (i = 0; (i < COMEM_MAXPCI); i++) {
786 if (pci_irqlist[i].handler)
787 (*pci_irqlist[i].handler)(irq,pci_irqlist[i].dev_id,fp);
791 /*****************************************************************************/
794 * The shared memory region is broken up into contiguous 512 byte
795 * regions for easy allocation... This is not an optimal solution
796 * but it makes allocation and freeing regions really easy.
799 #define PCI_MEMSLOTSIZE 512
800 #define PCI_MEMSLOTS (COMEM_SHMEMSIZE / PCI_MEMSLOTSIZE)
802 char pci_shmemmap[PCI_MEMSLOTS];
805 void *pci_bmalloc(int size)
810 printk(KERN_DEBUG "pci_bmalloc(size=%d)\n", size);
814 return((void *) NULL);
816 nrslots = (size - 1) / PCI_MEMSLOTSIZE;
818 for (i = 0; (i < (PCI_MEMSLOTS-nrslots)); i++) {
819 if (pci_shmemmap[i] == 0) {
820 for (j = i+1; (j < (i+nrslots)); j++) {
825 for (j = i; (j <= i+nrslots); j++)
832 return((void *) (COMEM_BASE + COMEM_SHMEM + (i * PCI_MEMSLOTSIZE)));
835 /*****************************************************************************/
837 void pci_bmfree(void *mp, int size)
842 printk(KERN_DEBUG "pci_bmfree(mp=%x,size=%d)\n", (int) mp, size);
845 nrslots = size / PCI_MEMSLOTSIZE;
846 i = (((unsigned long) mp) - (COMEM_BASE + COMEM_SHMEM)) /
849 for (j = i; (j < (i+nrslots)); j++)
853 /*****************************************************************************/
855 unsigned long pci_virt_to_bus(volatile void *address)
860 printk(KERN_DEBUG "pci_virt_to_bus(address=%x)", (int) address);
863 l = ((unsigned long) address) - COMEM_BASE;
865 printk(KERN_DEBUG "=%x\n", (int) (l+pci_shmemaddr));
867 return(l + pci_shmemaddr);
870 /*****************************************************************************/
872 void *pci_bus_to_virt(unsigned long address)
877 printk(KERN_DEBUG "pci_bus_to_virt(address=%x)", (int) address);
880 l = address - pci_shmemaddr;
882 printk(KERN_DEBUG "=%x\n", (int) (address + COMEM_BASE));
884 return((void *) (address + COMEM_BASE));
887 /*****************************************************************************/
889 void pci_bmcpyto(void *dst, void *src, int len)
891 unsigned long *dp, *sp, val;
892 unsigned char *dcp, *scp;
896 printk(KERN_DEBUG "pci_bmcpyto(dst=%x,src=%x,len=%d)\n", (int)dst, (int)src, len);
899 dp = (unsigned long *) dst;
900 sp = (unsigned long *) src;
904 printk(KERN_INFO "DATA:");
905 scp = (unsigned char *) sp;
906 for (i = 0; (i < len); i++) {
907 if ((i % 16) == 0) printk(KERN_INFO "\n%04x: ", i);
908 printk(KERN_INFO "%02x ", *scp++);
910 printk(KERN_INFO "\n");
913 for (j = 0; (i >= 0); i--, j++) {
915 val = (val << 24) | ((val & 0x0000ff00) << 8) |
916 ((val & 0x00ff0000) >> 8) | (val >> 24);
921 dcp = (unsigned char *) dp;
922 scp = ((unsigned char *) sp) + 3;
923 for (i = 0; (i < (len & 0x3)); i++)
928 /*****************************************************************************/
930 void pci_bmcpyfrom(void *dst, void *src, int len)
932 unsigned long *dp, *sp, val;
933 unsigned char *dcp, *scp;
937 printk(KERN_DEBUG "pci_bmcpyfrom(dst=%x,src=%x,len=%d)\n",(int)dst,(int)src,len);
940 dp = (unsigned long *) dst;
941 sp = (unsigned long *) src;
944 for (; (i >= 0); i--) {
946 val = (val << 24) | ((val & 0x0000ff00) << 8) |
947 ((val & 0x00ff0000) >> 8) | (val >> 24);
952 dcp = ((unsigned char *) dp) + 3;
953 scp = (unsigned char *) sp;
954 for (i = 0; (i < (len & 0x3)); i++)
959 printk(KERN_INFO "DATA:");
960 dcp = (unsigned char *) dst;
961 for (i = 0; (i < len); i++) {
962 if ((i % 16) == 0) printk(KERN_INFO "\n%04x: ", i);
963 printk(KERN_INFO "%02x ", *dcp++);
965 printk(KERN_INFO "\n");
969 /*****************************************************************************/
971 void *pci_alloc_consistent(struct pci_dev *dev, size_t size, dma_addr_t *dma_addr)
974 if ((mp = pci_bmalloc(size)) != NULL) {
975 dma_addr = mp - (COMEM_BASE + COMEM_SHMEM);
978 *dma_addr = (dma_addr_t) NULL;
982 /*****************************************************************************/
984 void pci_free_consistent(struct pci_dev *dev, size_t size, void *cpu_addr, dma_addr_t dma_addr)
986 pci_bmfree(cpu_addr, size);
989 /*****************************************************************************/