+++ /dev/null
-/*
- * arch/ubicom32/mach-common/io.c
- * PCI I/O memory read/write support functions.
- *
- * (C) Copyright 2009, Ubicom, Inc.
- *
- * This file is part of the Ubicom32 Linux Kernel Port.
- *
- * The Ubicom32 Linux Kernel Port is free software: you can redistribute
- * it and/or modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 2 of the
- * License, or (at your option) any later version.
- *
- * The Ubicom32 Linux Kernel Port is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the Ubicom32 Linux Kernel Port. If not,
- * see <http://www.gnu.org/licenses/>.
- *
- * Ubicom32 implementation derived from (with many thanks):
- * arch/m68knommu
- * arch/blackfin
- * arch/parisc
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-
-#ifdef CONFIG_PCI
-unsigned char ioread8(void __iomem *addr)
-{
- if (IS_PCI_ADDRESS(addr))
- return ubi32_pci_read_u8(addr);
- else
- return (unsigned char)(*(volatile unsigned char *)addr);
-}
-EXPORT_SYMBOL(ioread8);
-
-unsigned short ioread16(void __iomem *addr)
-{
- if (IS_PCI_ADDRESS(addr))
- return ubi32_pci_read_u16(addr);
- else
- return (unsigned short)(*(volatile unsigned short *)addr);
-}
-EXPORT_SYMBOL(ioread16);
-
-unsigned int ioread32(void __iomem *addr)
-{
- if (IS_PCI_ADDRESS(addr))
- return ubi32_pci_read_u32(addr);
- else
- return (unsigned int)(*(volatile unsigned int *)addr);
-}
-EXPORT_SYMBOL(ioread32);
-
-void iowrite32(unsigned int val, void __iomem *addr)
-{
- if (IS_PCI_ADDRESS(addr))
- ubi32_pci_write_u32(val, addr);
- else
- *(volatile unsigned int *)addr = val;
-}
-EXPORT_SYMBOL(iowrite32);
-
-void iowrite16(unsigned short val, void __iomem *addr)
-{
- if (IS_PCI_ADDRESS(addr))
- ubi32_pci_write_u16(val, addr);
- else
- *(volatile unsigned short *)addr = val;
-}
-EXPORT_SYMBOL(iowrite16);
-
-void iowrite8(unsigned char val, void __iomem *addr)
-{
- if (IS_PCI_ADDRESS(addr))
- ubi32_pci_write_u8(val, addr);
- else
- *(volatile unsigned char *)addr = val;
-}
-EXPORT_SYMBOL(iowrite8);
-
-void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned len)
-{
- if (IS_PCI_ADDRESS(from)) {
- if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) {
- while ((int)len >= 4) {
- *(u32_t *)to = ubi32_pci_read_u32(from);
- to += 4;
- from += 4;
- len -= 4;
- }
- } else if ((((u32_t)from & 0x1) == 0) &&
- (((u32_t)to & 0x1) == 0)) {
- while ((int)len >= 2) {
- *(u16_t *)to = ubi32_pci_read_u16(from);
- to += 2;
- from += 2;
- len -= 2;
- }
- }
-
- while (len) {
- *(u8_t *)to = ubi32_pci_read_u8(from);
- to++;
- from++;
- len--;
- }
- } else
- memcpy(to, (void *)from, len);
-}
-EXPORT_SYMBOL(memcpy_fromio);
-
-void memcpy_toio(volatile void __iomem *to, const void *from, unsigned len)
-{
- if (IS_PCI_ADDRESS(to)) {
- if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) {
- while ((int)len >= 4) {
- ubi32_pci_write_u32(*(u32_t *)from, to);
- to += 4;
- from += 4;
- len -= 4;
- }
- } else if ((((u32_t)from & 0x1) == 0) &&
- (((u32_t)to & 0x1) == 0)) {
- while ((int)len >= 2) {
- ubi32_pci_write_u16(*(u16_t *)from, to);
- to += 2;
- from += 2;
- len -= 2;
- }
- }
-
- while (len) {
- ubi32_pci_write_u8(*(u8_t *)from, to);
- from++;
- to++;
- len--;
- }
- } else
- memcpy((void *)to, from, len);
-
-}
-EXPORT_SYMBOL(memcpy_toio);
-
-void memset_io(volatile void __iomem *addr, int val, size_t len)
-{
- if (IS_PCI_ADDRESS(addr)) {
- while (len) {
- ubi32_pci_write_u8((unsigned char)val, addr);
- addr++;
- len--;
- }
- } else
- memset((void *)addr, val, len);
-
-}
-EXPORT_SYMBOL(memset_io);
-
-void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
-{
- if (IS_PCI_ADDRESS(port)) {
- while (count) {
- *(u8_t *)buf = ioread8(port);
- buf++;
- count--;
- }
- } else {
- insb((unsigned int)port, buf, count);
- }
-
-}
-EXPORT_SYMBOL(ioread8_rep);
-
-void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
-{
- if (IS_PCI_ADDRESS(port)) {
- while (count) {
- *(u16_t *)buf = ioread16(port);
- buf += 2;
- count--;
- }
- } else {
- insw((unsigned int)port, buf, count);
- }
-}
-EXPORT_SYMBOL(ioread16_rep);
-
-void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
-{
- if (IS_PCI_ADDRESS(port)) {
- while (count) {
- *(u32_t *)buf = ioread32(port);
- buf += 4;
- count--;
- }
- } else {
- insl((unsigned int)port, buf, count);
- }
-}
-EXPORT_SYMBOL(ioread32_rep);
-
-void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
-{
- if (IS_PCI_ADDRESS(port)) {
- while (count) {
- iowrite8(*(u8_t *)buf, port);
- buf++;
- count--;
- }
- } else {
- outsb((unsigned int)port, buf, count);
- }
-
-}
-EXPORT_SYMBOL(iowrite8_rep);
-
-void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
-{
- if (IS_PCI_ADDRESS(port)) {
- while (count) {
- iowrite16(*(u16_t *)buf, port);
- buf += 2;
- count--;
- }
- } else {
- outsw((unsigned int)port, buf, count);
- }
-}
-EXPORT_SYMBOL(iowrite16_rep);
-
-void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
-{
- if (IS_PCI_ADDRESS(port)) {
- while (count) {
- iowrite32(*(u32_t *)buf, port);
- buf += 4;
- count--;
- }
- } else {
- outsl((unsigned int)port, buf, count);
- }
-}
-EXPORT_SYMBOL(iowrite32_rep);
-
-#endif /* CONFIG_PCI */
projects / openwrt.git / blobdiff