Commit 8871e73f authored by Linus Torvalds's avatar Linus Torvalds

Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC]: Add iomap interfaces.
  [OPENPROM]: Rewrite driver to use in-kernel device tree.
  [OPENPROMFS]: Rewrite using in-kernel device tree and seq_file.
  [SPARC]: Add unique device_node IDs and a ".node" property.
  [SPARC]: Add of_set_property() interface.
  [SPARC64]: Export auxio_register to modules.
  [SPARC64]: Add missing interfaces to dma-mapping.h
  [SPARC64]: Export _PAGE_IE to modules.
  [SPARC64]: Allow floppy driver to build modular.
  [SPARC]: Export x_bus_type to modules.
  [RIOWATCHDOG]: Fix the build.
  [CPWATCHDOG]: Fix the build.
  [PARPORT] sunbpp: Fix typo.
  [MTD] sun_uflash: Port to new EBUS device layer.
parents 61a46dc9 749805dc
......@@ -138,6 +138,7 @@ struct bus_type ebus_bus_type = {
.suspend = of_device_suspend,
.resume = of_device_resume,
};
EXPORT_SYMBOL(ebus_bus_type);
#endif
#ifdef CONFIG_SBUS
......@@ -149,6 +150,7 @@ struct bus_type sbus_bus_type = {
.suspend = of_device_suspend,
.resume = of_device_resume,
};
EXPORT_SYMBOL(sbus_bus_type);
#endif
static int __init of_bus_driver_init(void)
......
......@@ -27,6 +27,11 @@
static struct device_node *allnodes;
/* use when traversing tree through the allnext, child, sibling,
* or parent members of struct device_node.
*/
static DEFINE_RWLOCK(devtree_lock);
int of_device_is_compatible(struct device_node *device, const char *compat)
{
const char* cp;
......@@ -185,6 +190,54 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
}
EXPORT_SYMBOL(of_getintprop_default);
int of_set_property(struct device_node *dp, const char *name, void *val, int len)
{
struct property **prevp;
void *new_val;
int err;
new_val = kmalloc(len, GFP_KERNEL);
if (!new_val)
return -ENOMEM;
memcpy(new_val, val, len);
err = -ENODEV;
write_lock(&devtree_lock);
prevp = &dp->properties;
while (*prevp) {
struct property *prop = *prevp;
if (!strcmp(prop->name, name)) {
void *old_val = prop->value;
int ret;
ret = prom_setprop(dp->node, name, val, len);
err = -EINVAL;
if (ret >= 0) {
prop->value = new_val;
prop->length = len;
if (OF_IS_DYNAMIC(prop))
kfree(old_val);
OF_MARK_DYNAMIC(prop);
err = 0;
}
break;
}
prevp = &(*prevp)->next;
}
write_unlock(&devtree_lock);
/* XXX Upate procfs if necessary... */
return err;
}
EXPORT_SYMBOL(of_set_property);
static unsigned int prom_early_allocated;
static void * __init prom_early_alloc(unsigned long size)
......@@ -354,7 +407,9 @@ static char * __init build_full_name(struct device_node *dp)
return n;
}
static struct property * __init build_one_prop(phandle node, char *prev)
static unsigned int unique_id;
static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len)
{
static struct property *tmp = NULL;
struct property *p;
......@@ -364,25 +419,34 @@ static struct property * __init build_one_prop(phandle node, char *prev)
p = tmp;
memset(p, 0, sizeof(*p) + 32);
tmp = NULL;
} else
} else {
p = prom_early_alloc(sizeof(struct property) + 32);
p->unique_id = unique_id++;
}
p->name = (char *) (p + 1);
if (prev == NULL) {
prom_firstprop(node, p->name);
if (special_name) {
p->length = special_len;
p->value = prom_early_alloc(special_len);
memcpy(p->value, special_val, special_len);
} else {
prom_nextprop(node, prev, p->name);
}
if (strlen(p->name) == 0) {
tmp = p;
return NULL;
}
p->length = prom_getproplen(node, p->name);
if (p->length <= 0) {
p->length = 0;
} else {
p->value = prom_early_alloc(p->length);
len = prom_getproperty(node, p->name, p->value, p->length);
if (prev == NULL) {
prom_firstprop(node, p->name);
} else {
prom_nextprop(node, prev, p->name);
}
if (strlen(p->name) == 0) {
tmp = p;
return NULL;
}
p->length = prom_getproplen(node, p->name);
if (p->length <= 0) {
p->length = 0;
} else {
p->value = prom_early_alloc(p->length + 1);
prom_getproperty(node, p->name, p->value, p->length);
((unsigned char *)p->value)[p->length] = '\0';
}
}
return p;
}
......@@ -391,9 +455,14 @@ static struct property * __init build_prop_list(phandle node)
{
struct property *head, *tail;
head = tail = build_one_prop(node, NULL);
head = tail = build_one_prop(node, NULL,
".node", &node, sizeof(node));
tail->next = build_one_prop(node, NULL, NULL, NULL, 0);
tail = tail->next;
while(tail) {
tail->next = build_one_prop(node, tail->name);
tail->next = build_one_prop(node, tail->name,
NULL, NULL, 0);
tail = tail->next;
}
......@@ -422,6 +491,7 @@ static struct device_node * __init create_node(phandle node)
return NULL;
dp = prom_early_alloc(sizeof(*dp));
dp->unique_id = unique_id++;
kref_init(&dp->kref);
......
......@@ -9,3 +9,5 @@ lib-y := mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o memcpy.o memset.o \
strncpy_from_user.o divdi3.o udivdi3.o strlen_user.o \
copy_user.o locks.o atomic.o atomic32.o bitops.o \
lshrdi3.o ashldi3.o rwsem.o muldi3.o bitext.o
obj-y += iomap.o
/*
* Implement the sparc iomap interfaces
*/
#include <linux/pci.h>
#include <linux/module.h>
#include <asm/io.h>
/* Create a virtual mapping cookie for an IO port range */
void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
return (void __iomem *) (unsigned long) port;
}
void ioport_unmap(void __iomem *addr)
{
/* Nothing to do */
}
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
{
unsigned long start = pci_resource_start(dev, bar);
unsigned long len = pci_resource_len(dev, bar);
unsigned long flags = pci_resource_flags(dev, bar);
if (!len || !start)
return NULL;
if (maxlen && len > maxlen)
len = maxlen;
if (flags & IORESOURCE_IO)
return ioport_map(start, len);
if (flags & IORESOURCE_MEM) {
if (flags & IORESOURCE_CACHEABLE)
return ioremap(start, len);
return ioremap_nocache(start, len);
}
/* What? */
return NULL;
}
void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
/* nothing to do */
}
EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
......@@ -6,6 +6,7 @@
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ioport.h>
......@@ -16,8 +17,8 @@
#include <asm/ebus.h>
#include <asm/auxio.h>
/* This cannot be static, as it is referenced in irq.c */
void __iomem *auxio_register = NULL;
EXPORT_SYMBOL(auxio_register);
enum auxio_type {
AUXIO_TYPE_NODEV,
......
......@@ -563,67 +563,6 @@ void handler_irq(int irq, struct pt_regs *regs)
irq_exit();
}
#ifdef CONFIG_BLK_DEV_FD
extern irqreturn_t floppy_interrupt(int, void *, struct pt_regs *);
/* XXX No easy way to include asm/floppy.h XXX */
extern unsigned char *pdma_vaddr;
extern unsigned long pdma_size;
extern volatile int doing_pdma;
extern unsigned long fdc_status;
irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie, struct pt_regs *regs)
{
if (likely(doing_pdma)) {
void __iomem *stat = (void __iomem *) fdc_status;
unsigned char *vaddr = pdma_vaddr;
unsigned long size = pdma_size;
u8 val;
while (size) {
val = readb(stat);
if (unlikely(!(val & 0x80))) {
pdma_vaddr = vaddr;
pdma_size = size;
return IRQ_HANDLED;
}
if (unlikely(!(val & 0x20))) {
pdma_vaddr = vaddr;
pdma_size = size;
doing_pdma = 0;
goto main_interrupt;
}
if (val & 0x40) {
/* read */
*vaddr++ = readb(stat + 1);
} else {
unsigned char data = *vaddr++;
/* write */
writeb(data, stat + 1);
}
size--;
}
pdma_vaddr = vaddr;
pdma_size = size;
/* Send Terminal Count pulse to floppy controller. */
val = readb(auxio_register);
val |= AUXIO_AUX1_FTCNT;
writeb(val, auxio_register);
val &= ~AUXIO_AUX1_FTCNT;
writeb(val, auxio_register);
doing_pdma = 0;
}
main_interrupt:
return floppy_interrupt(irq, dev_cookie, regs);
}
EXPORT_SYMBOL(sparc_floppy_irq);
#endif
struct sun5_timer {
u64 count0;
u64 limit0;
......
......@@ -138,6 +138,7 @@ struct bus_type isa_bus_type = {
.suspend = of_device_suspend,
.resume = of_device_resume,
};
EXPORT_SYMBOL(isa_bus_type);
struct bus_type ebus_bus_type = {
.name = "ebus",
......@@ -147,6 +148,7 @@ struct bus_type ebus_bus_type = {
.suspend = of_device_suspend,
.resume = of_device_resume,
};
EXPORT_SYMBOL(ebus_bus_type);
#endif
#ifdef CONFIG_SBUS
......@@ -158,6 +160,7 @@ struct bus_type sbus_bus_type = {
.suspend = of_device_suspend,
.resume = of_device_resume,
};
EXPORT_SYMBOL(sbus_bus_type);
#endif
static int __init of_bus_driver_init(void)
......
......@@ -27,6 +27,11 @@
static struct device_node *allnodes;
/* use when traversing tree through the allnext, child, sibling,
* or parent members of struct device_node.
*/
static DEFINE_RWLOCK(devtree_lock);
int of_device_is_compatible(struct device_node *device, const char *compat)
{
const char* cp;
......@@ -185,6 +190,54 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
}
EXPORT_SYMBOL(of_getintprop_default);
int of_set_property(struct device_node *dp, const char *name, void *val, int len)
{
struct property **prevp;
void *new_val;
int err;
new_val = kmalloc(len, GFP_KERNEL);
if (!new_val)
return -ENOMEM;
memcpy(new_val, val, len);
err = -ENODEV;
write_lock(&devtree_lock);
prevp = &dp->properties;
while (*prevp) {
struct property *prop = *prevp;
if (!strcmp(prop->name, name)) {
void *old_val = prop->value;
int ret;
ret = prom_setprop(dp->node, name, val, len);
err = -EINVAL;
if (ret >= 0) {
prop->value = new_val;
prop->length = len;
if (OF_IS_DYNAMIC(prop))
kfree(old_val);
OF_MARK_DYNAMIC(prop);
err = 0;
}
break;
}
prevp = &(*prevp)->next;
}
write_unlock(&devtree_lock);
/* XXX Upate procfs if necessary... */
return err;
}
EXPORT_SYMBOL(of_set_property);
static unsigned int prom_early_allocated;
static void * __init prom_early_alloc(unsigned long size)
......@@ -531,7 +584,9 @@ static char * __init build_full_name(struct device_node *dp)
return n;
}
static struct property * __init build_one_prop(phandle node, char *prev)
static unsigned int unique_id;
static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len)
{
static struct property *tmp = NULL;
struct property *p;
......@@ -540,25 +595,35 @@ static struct property * __init build_one_prop(phandle node, char *prev)
p = tmp;
memset(p, 0, sizeof(*p) + 32);
tmp = NULL;
} else
} else {
p = prom_early_alloc(sizeof(struct property) + 32);
p->unique_id = unique_id++;
}
p->name = (char *) (p + 1);
if (prev == NULL) {
prom_firstprop(node, p->name);
if (special_name) {
strcpy(p->name, special_name);
p->length = special_len;
p->value = prom_early_alloc(special_len);
memcpy(p->value, special_val, special_len);
} else {
prom_nextprop(node, prev, p->name);
}
if (strlen(p->name) == 0) {
tmp = p;
return NULL;
}
p->length = prom_getproplen(node, p->name);
if (p->length <= 0) {
p->length = 0;
} else {
p->value = prom_early_alloc(p->length);
prom_getproperty(node, p->name, p->value, p->length);
if (prev == NULL) {
prom_firstprop(node, p->name);
} else {
prom_nextprop(node, prev, p->name);
}
if (strlen(p->name) == 0) {
tmp = p;
return NULL;
}
p->length = prom_getproplen(node, p->name);
if (p->length <= 0) {
p->length = 0;
} else {
p->value = prom_early_alloc(p->length + 1);
prom_getproperty(node, p->name, p->value, p->length);
((unsigned char *)p->value)[p->length] = '\0';
}
}
return p;
}
......@@ -567,9 +632,14 @@ static struct property * __init build_prop_list(phandle node)
{
struct property *head, *tail;
head = tail = build_one_prop(node, NULL);
head = tail = build_one_prop(node, NULL,
".node", &node, sizeof(node));
tail->next = build_one_prop(node, NULL, NULL, NULL, 0);
tail = tail->next;
while(tail) {
tail->next = build_one_prop(node, tail->name);
tail->next = build_one_prop(node, tail->name,
NULL, NULL, 0);
tail = tail->next;
}
......@@ -598,6 +668,7 @@ static struct device_node * __init create_node(phandle node)
return NULL;
dp = prom_early_alloc(sizeof(*dp));
dp->unique_id = unique_id++;
kref_init(&dp->kref);
......
......@@ -1568,6 +1568,7 @@ pgprot_t PAGE_EXEC __read_mostly;
unsigned long pg_iobits __read_mostly;
unsigned long _PAGE_IE __read_mostly;
EXPORT_SYMBOL(_PAGE_IE);
unsigned long _PAGE_E __read_mostly;
EXPORT_SYMBOL(_PAGE_E);
......
......@@ -18,6 +18,7 @@
#include <linux/ioport.h>
#include <asm/ebus.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/uaccess.h>
#include <asm/io.h>
......@@ -30,146 +31,140 @@
#define UFLASH_WINDOW_SIZE 0x200000
#define UFLASH_BUSWIDTH 1 /* EBus is 8-bit */
MODULE_AUTHOR
("Eric Brower <ebrower@usa.net>");
MODULE_DESCRIPTION
("User-programmable flash device on Sun Microsystems boardsets");
MODULE_SUPPORTED_DEVICE
("userflash");
MODULE_LICENSE
("GPL");
MODULE_AUTHOR("Eric Brower <ebrower@usa.net>");
MODULE_DESCRIPTION("User-programmable flash device on Sun Microsystems boardsets");
MODULE_SUPPORTED_DEVICE("userflash");
MODULE_LICENSE("GPL");
MODULE_VERSION("2.0");
static LIST_HEAD(device_list);
struct uflash_dev {
char * name; /* device name */
char *name; /* device name */
struct map_info map; /* mtd map info */
struct mtd_info * mtd; /* mtd info */
struct list_head list;
struct mtd_info *mtd; /* mtd info */
};
struct map_info uflash_map_templ = {
.name = "SUNW,???-????",
.size = UFLASH_WINDOW_SIZE,
.bankwidth = UFLASH_BUSWIDTH,
.name = "SUNW,???-????",
.size = UFLASH_WINDOW_SIZE,
.bankwidth = UFLASH_BUSWIDTH,
};
int uflash_devinit(struct linux_ebus_device* edev)
int uflash_devinit(struct linux_ebus_device *edev, struct device_node *dp)
{
int iTmp, nregs;
struct linux_prom_registers regs[2];
struct uflash_dev *pdev;
iTmp = prom_getproperty(
edev->prom_node, "reg", (void *)regs, sizeof(regs));
if ((iTmp % sizeof(regs[0])) != 0) {
printk("%s: Strange reg property size %d\n",
UFLASH_DEVNAME, iTmp);
return -ENODEV;
}
struct uflash_dev *up;
struct resource *res;
nregs = iTmp / sizeof(regs[0]);
res = &edev->resource[0];
if (nregs != 1) {
if (edev->num_addrs != 1) {
/* Non-CFI userflash device-- once I find one we
* can work on supporting it.
*/
printk("%s: unsupported device at 0x%lx (%d regs): " \
"email ebrower@usa.net\n",
UFLASH_DEVNAME, edev->resource[0].start, nregs);
dp->full_name, res->start, edev->num_addrs);
return -ENODEV;
}
if(0 == (pdev = kmalloc(sizeof(struct uflash_dev), GFP_KERNEL))) {
printk("%s: unable to kmalloc new device\n", UFLASH_DEVNAME);
return(-ENOMEM);
}
up = kzalloc(sizeof(struct uflash_dev), GFP_KERNEL);
if (!up)
return -ENOMEM;
/* copy defaults and tweak parameters */
memcpy(&pdev->map, &uflash_map_templ, sizeof(uflash_map_templ));
pdev->map.size = regs[0].reg_size;
iTmp = prom_getproplen(edev->prom_node, "model");
pdev->name = kmalloc(iTmp, GFP_KERNEL);
prom_getstring(edev->prom_node, "model", pdev->name, iTmp);
if(0 != pdev->name && 0 < strlen(pdev->name)) {
pdev->map.name = pdev->name;
}
pdev->map.phys = edev->resource[0].start;
pdev->map.virt = ioremap_nocache(edev->resource[0].start, pdev->map.size);
if(0 == pdev->map.virt) {
printk("%s: failed to map device\n", __FUNCTION__);
kfree(pdev->name);
kfree(pdev);
return(-1);
memcpy(&up->map, &uflash_map_templ, sizeof(uflash_map_templ));
up->map.size = (res->end - res->start) + 1UL;
up->name = of_get_property(dp, "model", NULL);
if (up->name && 0 < strlen(up->name))
up->map.name = up->name;
up->map.phys = res->start;
up->map.virt = ioremap_nocache(res->start, up->map.size);
if (!up->map.virt) {
printk("%s: Failed to map device.\n", dp->full_name);
kfree(up);
return -EINVAL;
}
simple_map_init(&pdev->map);
simple_map_init(&up->map);
/* MTD registration */
pdev->mtd = do_map_probe("cfi_probe", &pdev->map);
if(0 == pdev->mtd) {
iounmap(pdev->map.virt);
kfree(pdev->name);
kfree(pdev);
return(-ENXIO);
up->mtd = do_map_probe("cfi_probe", &up->map);
if (!up->mtd) {
iounmap(up->map.virt);
kfree(up);
return -ENXIO;
}
list_add(&pdev->list, &device_list);
up->mtd->owner = THIS_MODULE;
pdev->mtd->owner = THIS_MODULE;
add_mtd_device(up->mtd);
add_mtd_device(pdev->mtd);
return(0);
dev_set_drvdata(&edev->ofdev.dev, up);
return 0;
}
static int __init uflash_init(void)
static int __devinit uflash_probe(struct of_device *dev, const struct of_device_id *match)
{
struct linux_ebus *ebus = NULL;
struct linux_ebus_device *edev = NULL;
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, UFLASH_OBPNAME)) {
if(0 > prom_getproplen(edev->prom_node, "user")) {
DEBUG(2, "%s: ignoring device at 0x%lx\n",
UFLASH_DEVNAME, edev->resource[0].start);
} else {
uflash_devinit(edev);
}
}
}
}
struct linux_ebus_device *edev = to_ebus_device(&dev->dev);
struct device_node *dp = dev->node;
if(list_empty(&device_list)) {
printk("%s: unable to locate device\n", UFLASH_DEVNAME);
if (of_find_property(dp, "user", NULL))
return -ENODEV;
}
return(0);
return uflash_devinit(edev, dp);
}
static void __exit uflash_cleanup(void)
static int __devexit uflash_remove(struct of_device *dev)
{
struct list_head *udevlist;
struct uflash_dev *udev;
list_for_each(udevlist, &device_list) {
udev = list_entry(udevlist, struct uflash_dev, list);
DEBUG(2, "%s: removing device %s\n",
UFLASH_DEVNAME, udev->name);
if(0 != udev->mtd) {
del_mtd_device(udev->mtd);
map_destroy(udev->mtd);
}
if(0 != udev->map.virt) {
iounmap(udev->map.virt);
udev->map.virt = NULL;
}
kfree(udev->name);
kfree(udev);
struct uflash_dev *up = dev_get_drvdata(&dev->dev);
if (up->mtd) {
del_mtd_device(up->mtd);
map_destroy(up->mtd);
}
if (up->map.virt) {
iounmap(up->map.virt);
up->map.virt = NULL;
}
kfree(up);
return 0;
}
static struct of_device_id uflash_match[] = {
{
.name = UFLASH_OBPNAME,
},
{},
};
MODULE_DEVICE_TABLE(of, uflash_match);
static struct of_platform_driver uflash_driver = {
.name = UFLASH_DEVNAME,
.match_table = uflash_match,
.probe = uflash_probe,
.remove = __devexit_p(uflash_remove),
};
static int __init uflash_init(void)
{
return of_register_driver(&uflash_driver, &ebus_bus_type);
}
static void __exit uflash_exit(void)
{
of_unregister_driver(&uflash_driver);
}
module_init(uflash_init);
module_exit(uflash_cleanup);
module_exit(uflash_exit);
......@@ -389,7 +389,7 @@ static struct of_device_id bpp_match[] = {
{},
};
MODULE_DEVICE_TABLE(of, qec_sbus_match);
MODULE_DEVICE_TABLE(of, bpp_match);
static struct of_platform_driver bpp_sbus_driver = {
.name = "bpp",
......
......@@ -755,7 +755,7 @@ static int __init wd_init(void)
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, WD_OBPNAME))
if (!strcmp(edev->ofdev.node->name, WD_OBPNAME))
goto ebus_done;
}
}
......
......@@ -29,8 +29,6 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define PROMLIB_INTERNAL
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
......@@ -39,10 +37,10 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/miscdevice.h>
#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/openpromio.h>
......@@ -51,15 +49,20 @@
#include <asm/pbm.h>
#endif
MODULE_AUTHOR("Thomas K. Dyas (tdyas@noc.rutgers.edu) and Eddie C. Dost (ecd@skynet.be)");
MODULE_DESCRIPTION("OPENPROM Configuration Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.0");
/* Private data kept by the driver for each descriptor. */
typedef struct openprom_private_data
{
int current_node; /* Current node for SunOS ioctls. */
int lastnode; /* Last valid node used by BSD ioctls. */
struct device_node *current_node; /* Current node for SunOS ioctls. */
struct device_node *lastnode; /* Last valid node used by BSD ioctls. */
} DATA;
/* ID of the PROM node containing all of the EEPROM options. */
static int options_node = 0;
static struct device_node *options_node;
/*
* Copy an openpromio structure into kernel space from user space.
......@@ -87,9 +90,8 @@ static int copyin(struct openpromio __user *info, struct openpromio **opp_p)
if (bufsize > OPROMMAXPARAM)
bufsize = OPROMMAXPARAM;
if (!(*opp_p = kmalloc(sizeof(int) + bufsize + 1, GFP_KERNEL)))
if (!(*opp_p = kzalloc(sizeof(int) + bufsize + 1, GFP_KERNEL)))
return -ENOMEM;
memset(*opp_p, 0, sizeof(int) + bufsize + 1);
if (copy_from_user(&(*opp_p)->oprom_array,
&info->oprom_array, bufsize)) {
......@@ -107,10 +109,9 @@ static int getstrings(struct openpromio __user *info, struct openpromio **opp_p)
if (!info || !opp_p)
return -EFAULT;
if (!(*opp_p = kmalloc(sizeof(int) + OPROMMAXPARAM + 1, GFP_KERNEL)))
if (!(*opp_p = kzalloc(sizeof(int) + OPROMMAXPARAM + 1, GFP_KERNEL)))
return -ENOMEM;
memset(*opp_p, 0, sizeof(int) + OPROMMAXPARAM + 1);
(*opp_p)->oprom_size = 0;
n = bufsize = 0;
......@@ -140,16 +141,164 @@ static int copyout(void __user *info, struct openpromio *opp, int len)
return 0;
}
static int opromgetprop(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize)
{
void *pval;
int len;
pval = of_get_property(dp, op->oprom_array, &len);
if (!pval || len <= 0 || len > bufsize)
return copyout(argp, op, sizeof(int));
memcpy(op->oprom_array, pval, len);
op->oprom_array[len] = '\0';
op->oprom_size = len;
return copyout(argp, op, sizeof(int) + bufsize);
}
static int opromnxtprop(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize)
{
struct property *prop;
int len;
if (op->oprom_array[0] == '\0') {
prop = dp->properties;
if (!prop)
return copyout(argp, op, sizeof(int));
len = strlen(prop->name);
} else {
prop = of_find_property(dp, op->oprom_array, NULL);
if (!prop ||
!prop->next ||
(len = strlen(prop->next->name)) + 1 > bufsize)
return copyout(argp, op, sizeof(int));
prop = prop->next;
}
memcpy(op->oprom_array, prop->name, len);
op->oprom_array[len] = '\0';
op->oprom_size = ++len;
return copyout(argp, op, sizeof(int) + bufsize);
}
static int opromsetopt(struct device_node *dp, struct openpromio *op, int bufsize)
{
char *buf = op->oprom_array + strlen(op->oprom_array) + 1;
int len = op->oprom_array + bufsize - buf;
return of_set_property(options_node, op->oprom_array, buf, len);
}
static int opromnext(void __user *argp, unsigned int cmd, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data)
{
phandle ph;
BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
if (bufsize < sizeof(phandle))
return -EINVAL;
ph = *((int *) op->oprom_array);
if (ph) {
dp = of_find_node_by_phandle(ph);
if (!dp)
return -EINVAL;
switch (cmd) {
case OPROMNEXT:
dp = dp->sibling;
break;
case OPROMCHILD:
dp = dp->child;
break;
case OPROMSETCUR:
default:
break;
};
} else {
/* Sibling of node zero is the root node. */
if (cmd != OPROMNEXT)
return -EINVAL;
dp = of_find_node_by_path("/");
}
ph = 0;
if (dp)
ph = dp->node;
data->current_node = dp;
*((int *) op->oprom_array) = ph;
op->oprom_size = sizeof(phandle);
return copyout(argp, op, bufsize + sizeof(int));
}
static int oprompci2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data)
{
int err = -EINVAL;
if (bufsize >= 2*sizeof(int)) {
#ifdef CONFIG_PCI
struct pci_dev *pdev;
struct pcidev_cookie *pcp;
pdev = pci_find_slot (((int *) op->oprom_array)[0],
((int *) op->oprom_array)[1]);
pcp = pdev->sysdata;
if (pcp != NULL) {
dp = pcp->prom_node;
data->current_node = dp;
*((int *)op->oprom_array) = dp->node;
op->oprom_size = sizeof(int);
err = copyout(argp, op, bufsize + sizeof(int));
}
#endif
}
return err;
}
static int oprompath2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data)
{
dp = of_find_node_by_path(op->oprom_array);
data->current_node = dp;
*((int *)op->oprom_array) = dp->node;
op->oprom_size = sizeof(int);
return copyout(argp, op, bufsize + sizeof(int));
}
static int opromgetbootargs(void __user *argp, struct openpromio *op, int bufsize)
{
char *buf = saved_command_line;
int len = strlen(buf);
if (len > bufsize)
return -EINVAL;
strcpy(op->oprom_array, buf);
op->oprom_size = len;
return copyout(argp, op, bufsize + sizeof(int));
}
/*
* SunOS and Solaris /dev/openprom ioctl calls.
*/
static int openprom_sunos_ioctl(struct inode * inode, struct file * file,
unsigned int cmd, unsigned long arg, int node)
unsigned int cmd, unsigned long arg,
struct device_node *dp)
{
DATA *data = (DATA *) file->private_data;
char buffer[OPROMMAXPARAM+1], *buf;
DATA *data = file->private_data;
struct openpromio *opp;
int bufsize, len, error = 0;
int bufsize, error = 0;
static int cnt;
void __user *argp = (void __user *)arg;
......@@ -164,119 +313,35 @@ static int openprom_sunos_ioctl(struct inode * inode, struct file * file,
switch (cmd) {
case OPROMGETOPT:
case OPROMGETPROP:
len = prom_getproplen(node, opp->oprom_array);
if (len <= 0 || len > bufsize) {
error = copyout(argp, opp, sizeof(int));
break;
}
len = prom_getproperty(node, opp->oprom_array, buffer, bufsize);
memcpy(opp->oprom_array, buffer, len);
opp->oprom_array[len] = '\0';
opp->oprom_size = len;
error = copyout(argp, opp, sizeof(int) + bufsize);
error = opromgetprop(argp, dp, opp, bufsize);
break;
case OPROMNXTOPT:
case OPROMNXTPROP:
buf = prom_nextprop(node, opp->oprom_array, buffer);
len = strlen(buf);
if (len == 0 || len + 1 > bufsize) {
error = copyout(argp, opp, sizeof(int));
break;
}
memcpy(opp->oprom_array, buf, len);
opp->oprom_array[len] = '\0';
opp->oprom_size = ++len;
error = copyout(argp, opp, sizeof(int) + bufsize);
error = opromnxtprop(argp, dp, opp, bufsize);
break;
case OPROMSETOPT:
case OPROMSETOPT2:
buf = opp->oprom_array + strlen(opp->oprom_array) + 1;
len = opp->oprom_array + bufsize - buf;
error = prom_setprop(options_node, opp->oprom_array,
buf, len);
if (error < 0)
error = -EINVAL;
error = opromsetopt(dp, opp, bufsize);
break;
case OPROMNEXT:
case OPROMCHILD:
case OPROMSETCUR:
if (bufsize < sizeof(int)) {
error = -EINVAL;
break;
}
node = *((int *) opp->oprom_array);
switch (cmd) {
case OPROMNEXT: node = __prom_getsibling(node); break;
case OPROMCHILD: node = __prom_getchild(node); break;
case OPROMSETCUR: break;
}
data->current_node = node;
*((int *)opp->oprom_array) = node;
opp->oprom_size = sizeof(int);
error = copyout(argp, opp, bufsize + sizeof(int));
error = opromnext(argp, cmd, dp, opp, bufsize, data);
break;
case OPROMPCI2NODE:
error = -EINVAL;
if (bufsize >= 2*sizeof(int)) {
#ifdef CONFIG_PCI
struct pci_dev *pdev;
struct pcidev_cookie *pcp;
pdev = pci_find_slot (((int *) opp->oprom_array)[0],
((int *) opp->oprom_array)[1]);
pcp = pdev->sysdata;
if (pcp != NULL) {
node = pcp->prom_node->node;
data->current_node = node;
*((int *)opp->oprom_array) = node;
opp->oprom_size = sizeof(int);
error = copyout(argp, opp, bufsize + sizeof(int));
}
#endif
}
error = oprompci2node(argp, dp, opp, bufsize, data);
break;
case OPROMPATH2NODE:
node = prom_finddevice(opp->oprom_array);
data->current_node = node;
*((int *)opp->oprom_array) = node;
opp->oprom_size = sizeof(int);
error = copyout(argp, opp, bufsize + sizeof(int));
error = oprompath2node(argp, dp, opp, bufsize, data);
break;
case OPROMGETBOOTARGS:
buf = saved_command_line;
len = strlen(buf);
if (len > bufsize) {
error = -EINVAL;
break;
}
strcpy(opp->oprom_array, buf);
opp->oprom_size = len;
error = copyout(argp, opp, bufsize + sizeof(int));
error = opromgetbootargs(argp, opp, bufsize);
break;
case OPROMU2P:
......@@ -297,25 +362,14 @@ static int openprom_sunos_ioctl(struct inode * inode, struct file * file,
return error;
}
/* Return nonzero if a specific node is in the PROM device tree. */
static int intree(int root, int node)
static struct device_node *get_node(phandle n, DATA *data)
{
for (; root != 0; root = prom_getsibling(root))
if (root == node || intree(prom_getchild(root),node))
return 1;
return 0;
}
struct device_node *dp = of_find_node_by_phandle(n);
/* Return nonzero if a specific node is "valid". */
static int goodnode(int n, DATA *data)
{
if (n == data->lastnode || n == prom_root_node || n == options_node)
return 1;
if (n == 0 || n == -1 || !intree(prom_root_node,n))
return 0;
data->lastnode = n;
return 1;
if (dp)
data->lastnode = dp;
return dp;
}
/* Copy in a whole string from userspace into kernelspace. */
......@@ -330,7 +384,7 @@ static int copyin_string(char __user *user, size_t len, char **ptr)
if (!tmp)
return -ENOMEM;
if(copy_from_user(tmp, user, len)) {
if (copy_from_user(tmp, user, len)) {
kfree(tmp);
return -EFAULT;
}
......@@ -345,162 +399,187 @@ static int copyin_string(char __user *user, size_t len, char **ptr)
/*
* NetBSD /dev/openprom ioctl calls.
*/
static int openprom_bsd_ioctl(struct inode * inode, struct file * file,
unsigned int cmd, unsigned long arg)
static int opiocget(void __user *argp, DATA *data)
{
DATA *data = (DATA *) file->private_data;
void __user *argp = (void __user *)arg;
struct opiocdesc op;
int error, node, len;
char *str, *tmp;
char buffer[64];
static int cnt;
switch (cmd) {
case OPIOCGET:
if (copy_from_user(&op, argp, sizeof(op)))
return -EFAULT;
if (!goodnode(op.op_nodeid,data))
return -EINVAL;
struct device_node *dp;
char *str;
void *pval;
int err, len;
error = copyin_string(op.op_name, op.op_namelen, &str);
if (error)
return error;
if (copy_from_user(&op, argp, sizeof(op)))
return -EFAULT;
len = prom_getproplen(op.op_nodeid,str);
dp = get_node(op.op_nodeid, data);
if (len > op.op_buflen) {
kfree(str);
return -ENOMEM;
}
err = copyin_string(op.op_name, op.op_namelen, &str);
if (err)
return err;
pval = of_get_property(dp, str, &len);
err = 0;
if (!pval || len > op.op_buflen) {
err = -EINVAL;
} else {
op.op_buflen = len;
if (copy_to_user(argp, &op, sizeof(op)) ||
copy_to_user(op.op_buf, pval, len))
err = -EFAULT;
}
kfree(str);
if (len <= 0) {
kfree(str);
/* Verified by the above copy_from_user */
if (__copy_to_user(argp, &op,
sizeof(op)))
return -EFAULT;
return 0;
}
return err;
}
tmp = kmalloc(len + 1, GFP_KERNEL);
if (!tmp) {
kfree(str);
return -ENOMEM;
}
static int opiocnextprop(void __user *argp, DATA *data)
{
struct opiocdesc op;
struct device_node *dp;
struct property *prop;
char *str;
int err, len;
cnt = prom_getproperty(op.op_nodeid, str, tmp, len);
if (cnt <= 0) {
error = -EINVAL;
} else {
tmp[len] = '\0';
if (copy_from_user(&op, argp, sizeof(op)))
return -EFAULT;
if (__copy_to_user(argp, &op, sizeof(op)) != 0 ||
copy_to_user(op.op_buf, tmp, len) != 0)
error = -EFAULT;
}
dp = get_node(op.op_nodeid, data);
if (!dp)
return -EINVAL;
kfree(tmp);
kfree(str);
err = copyin_string(op.op_name, op.op_namelen, &str);
if (err)
return err;
return error;
if (str[0] == '\0') {
prop = dp->properties;
} else {
prop = of_find_property(dp, str, NULL);
if (prop)
prop = prop->next;
}
kfree(str);
case OPIOCNEXTPROP:
if (copy_from_user(&op, argp, sizeof(op)))
return -EFAULT;
if (!prop)
len = 0;
else
len = prop->length;
if (!goodnode(op.op_nodeid,data))
return -EINVAL;
if (len > op.op_buflen)
len = op.op_buflen;
error = copyin_string(op.op_name, op.op_namelen, &str);
if (error)
return error;
if (copy_to_user(argp, &op, sizeof(op)))
return -EFAULT;
tmp = prom_nextprop(op.op_nodeid,str,buffer);
if (len &&
copy_to_user(op.op_buf, prop->value, len))
return -EFAULT;
if (tmp) {
len = strlen(tmp);
if (len > op.op_buflen)
len = op.op_buflen;
else
op.op_buflen = len;
} else {
len = op.op_buflen = 0;
}
return 0;
}
if (!access_ok(VERIFY_WRITE, argp, sizeof(op))) {
kfree(str);
return -EFAULT;
}
static int opiocset(void __user *argp, DATA *data)
{
struct opiocdesc op;
struct device_node *dp;
char *str, *tmp;
int err;
if (!access_ok(VERIFY_WRITE, op.op_buf, len)) {
kfree(str);
return -EFAULT;
}
if (copy_from_user(&op, argp, sizeof(op)))
return -EFAULT;
dp = get_node(op.op_nodeid, data);
if (!dp)
return -EINVAL;
error = __copy_to_user(argp, &op, sizeof(op));
if (!error) error = __copy_to_user(op.op_buf, tmp, len);
err = copyin_string(op.op_name, op.op_namelen, &str);
if (err)
return err;
err = copyin_string(op.op_buf, op.op_buflen, &tmp);
if (err) {
kfree(str);
return err;
}
return error;
err = of_set_property(dp, str, tmp, op.op_buflen);
case OPIOCSET:
if (copy_from_user(&op, argp, sizeof(op)))
return -EFAULT;
kfree(str);
kfree(tmp);
if (!goodnode(op.op_nodeid,data))
return -EINVAL;
return err;
}
error = copyin_string(op.op_name, op.op_namelen, &str);
if (error)
return error;
static int opiocgetnext(unsigned int cmd, void __user *argp)
{
struct device_node *dp;
phandle nd;
error = copyin_string(op.op_buf, op.op_buflen, &tmp);
if (error) {
kfree(str);
return error;
}
BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
len = prom_setprop(op.op_nodeid,str,tmp,op.op_buflen+1);
if (copy_from_user(&nd, argp, sizeof(phandle)))
return -EFAULT;
if (len != op.op_buflen)
if (nd == 0) {
if (cmd != OPIOCGETNEXT)
return -EINVAL;
dp = of_find_node_by_path("/");
} else {
dp = of_find_node_by_phandle(nd);
nd = 0;
if (dp) {
if (cmd == OPIOCGETNEXT)
dp = dp->sibling;
else
dp = dp->child;
}
}
if (dp)
nd = dp->node;
if (copy_to_user(argp, &nd, sizeof(phandle)))
return -EFAULT;
kfree(str);
kfree(tmp);
return 0;
}
return 0;
static int openprom_bsd_ioctl(struct inode * inode, struct file * file,
unsigned int cmd, unsigned long arg)
{
DATA *data = (DATA *) file->private_data;
void __user *argp = (void __user *)arg;
int err;
case OPIOCGETOPTNODE:
if (copy_to_user(argp, &options_node, sizeof(int)))
return -EFAULT;
return 0;
switch (cmd) {
case OPIOCGET:
err = opiocget(argp, data);
break;
case OPIOCGETNEXT:
case OPIOCGETCHILD:
if (copy_from_user(&node, argp, sizeof(int)))
return -EFAULT;
case OPIOCNEXTPROP:
err = opiocnextprop(argp, data);
break;
if (cmd == OPIOCGETNEXT)
node = __prom_getsibling(node);
else
node = __prom_getchild(node);
case OPIOCSET:
err = opiocset(argp, data);
break;
case OPIOCGETOPTNODE:
BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
if (__copy_to_user(argp, &node, sizeof(int)))
if (copy_to_user(argp, &options_node->node, sizeof(phandle)))
return -EFAULT;
return 0;
case OPIOCGETNEXT:
case OPIOCGETCHILD:
err = opiocgetnext(cmd, argp);
break;
default:
if (cnt++ < 10)
printk(KERN_INFO "openprom_bsd_ioctl: cmd 0x%X\n", cmd);
return -EINVAL;
}
};
return err;
}
......@@ -511,7 +590,6 @@ static int openprom_ioctl(struct inode * inode, struct file * file,
unsigned int cmd, unsigned long arg)
{
DATA *data = (DATA *) file->private_data;
static int cnt;
switch (cmd) {
case OPROMGETOPT:
......@@ -563,10 +641,8 @@ static int openprom_ioctl(struct inode * inode, struct file * file,
return openprom_bsd_ioctl(inode,file,cmd,arg);
default:
if (cnt++ < 10)
printk("openprom_ioctl: cmd 0x%X, arg 0x%lX\n", cmd, arg);
return -EINVAL;
}
};
}
static long openprom_compat_ioctl(struct file *file, unsigned int cmd,
......@@ -594,9 +670,7 @@ static long openprom_compat_ioctl(struct file *file, unsigned int cmd,
case OPROMSETCUR:
case OPROMPCI2NODE:
case OPROMPATH2NODE:
lock_kernel();
rval = openprom_ioctl(file->f_dentry->d_inode, file, cmd, arg);
lock_kernel();
break;
}
......@@ -607,13 +681,13 @@ static int openprom_open(struct inode * inode, struct file * file)
{
DATA *data;
data = (DATA *) kmalloc(sizeof(DATA), GFP_KERNEL);
data = kmalloc(sizeof(DATA), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->current_node = prom_root_node;
data->lastnode = prom_root_node;
file->private_data = (void *)data;
data->current_node = of_find_node_by_path("/");
data->lastnode = data->current_node;
file->private_data = (void *) data;
return 0;
}
......@@ -634,24 +708,30 @@ static struct file_operations openprom_fops = {
};
static struct miscdevice openprom_dev = {
SUN_OPENPROM_MINOR, "openprom", &openprom_fops
.minor = SUN_OPENPROM_MINOR,
.name = "openprom",
.fops = &openprom_fops,
};
static int __init openprom_init(void)
{
int error;
struct device_node *dp;
int err;
error = misc_register(&openprom_dev);
if (error) {
printk(KERN_ERR "openprom: unable to get misc minor\n");
return error;
}
err = misc_register(&openprom_dev);
if (err)
return err;
options_node = prom_getchild(prom_root_node);
options_node = prom_searchsiblings(options_node,"options");
dp = of_find_node_by_path("/");
dp = dp->child;
while (dp) {
if (!strcmp(dp->name, "options"))
break;
dp = dp->sibling;
}
options_node = dp;
if (options_node == 0 || options_node == -1) {
printk(KERN_ERR "openprom: unable to find options node\n");
if (!options_node) {
misc_deregister(&openprom_dev);
return -EIO;
}
......@@ -666,4 +746,3 @@ static void __exit openprom_cleanup(void)
module_init(openprom_init);
module_exit(openprom_cleanup);
MODULE_LICENSE("GPL");
......@@ -211,7 +211,7 @@ static int __init riowd_bbc_init(void)
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, "bbc"))
if (!strcmp(edev->ofdev.node->name, "bbc"))
goto found_bbc;
}
}
......@@ -238,7 +238,7 @@ static int __init riowd_init(void)
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, RIOWD_NAME))
if (!strcmp(edev->ofdev.node->name, RIOWD_NAME))
goto ebus_done;
}
}
......
/* $Id: inode.c,v 1.15 2001/11/12 09:43:39 davem Exp $
* openpromfs.c: /proc/openprom handling routines
/* inode.c: /proc/openprom handling routines
*
* Copyright (C) 1996-1999 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
......@@ -12,762 +11,245 @@
#include <linux/openprom_fs.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/seq_file.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/uaccess.h>
#define ALIASES_NNODES 64
typedef struct {
u16 parent;
u16 next;
u16 child;
u16 first_prop;
u32 node;
} openpromfs_node;
typedef struct {
#define OPP_STRING 0x10
#define OPP_STRINGLIST 0x20
#define OPP_BINARY 0x40
#define OPP_HEXSTRING 0x80
#define OPP_DIRTY 0x01
#define OPP_QUOTED 0x02
#define OPP_NOTQUOTED 0x04
#define OPP_ASCIIZ 0x08
u32 flag;
u32 alloclen;
u32 len;
char *value;
char name[8];
} openprom_property;
static openpromfs_node *nodes;
static int alloced;
static u16 last_node;
static u16 first_prop;
static u16 options = 0xffff;
static u16 aliases = 0xffff;
static int aliases_nodes;
static char *alias_names [ALIASES_NNODES];
#define OPENPROM_ROOT_INO 16
#define OPENPROM_FIRST_INO OPENPROM_ROOT_INO
#define NODE(ino) nodes[ino - OPENPROM_FIRST_INO]
#define NODE2INO(node) (node + OPENPROM_FIRST_INO)
#define NODEP2INO(no) (no + OPENPROM_FIRST_INO + last_node)
static int openpromfs_create (struct inode *, struct dentry *, int, struct nameidata *);
static int openpromfs_readdir(struct file *, void *, filldir_t);
static struct dentry *openpromfs_lookup(struct inode *, struct dentry *dentry, struct nameidata *nd);
static int openpromfs_unlink (struct inode *, struct dentry *dentry);
static DEFINE_MUTEX(op_mutex);
static inline u16 ptr_nod(void *p)
{
return (long)p & 0xFFFF;
}
#define OPENPROM_ROOT_INO 0
static ssize_t nodenum_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
enum op_inode_type {
op_inode_node,
op_inode_prop,
};
union op_inode_data {
struct device_node *node;
struct property *prop;
};
struct op_inode_info {
struct inode vfs_inode;
enum op_inode_type type;
union op_inode_data u;
};
static inline struct op_inode_info *OP_I(struct inode *inode)
{
struct inode *inode = file->f_dentry->d_inode;
char buffer[10];
if (count < 0 || !inode->u.generic_ip)
return -EINVAL;
sprintf (buffer, "%8.8lx\n", (long)inode->u.generic_ip);
if (file->f_pos >= 9)
return 0;
if (count > 9 - file->f_pos)
count = 9 - file->f_pos;
if (copy_to_user(buf, buffer + file->f_pos, count))
return -EFAULT;
*ppos += count;
return count;
return container_of(inode, struct op_inode_info, vfs_inode);
}
static ssize_t property_read(struct file *filp, char __user *buf,
size_t count, loff_t *ppos)
static int is_string(unsigned char *p, int len)
{
struct inode *inode = filp->f_dentry->d_inode;
int i, j, k;
u32 node;
char *p, *s;
u32 *q;
openprom_property *op;
char buffer[64];
if (!filp->private_data) {
node = nodes[ptr_nod(inode->u.generic_ip)].node;
i = ((u32)(long)inode->u.generic_ip) >> 16;
if (ptr_nod(inode->u.generic_ip) == aliases) {
if (i >= aliases_nodes)
p = NULL;
else
p = alias_names [i];
} else
for (p = prom_firstprop (node, buffer);
i && p && *p;
p = prom_nextprop (node, p, buffer), i--)
/* nothing */ ;
if (!p || !*p)
return -EIO;
i = prom_getproplen (node, p);
if (i < 0) {
if (ptr_nod(inode->u.generic_ip) == aliases)
i = 0;
else
return -EIO;
}
k = i;
if (i < 64) i = 64;
filp->private_data = kmalloc (sizeof (openprom_property)
+ (j = strlen (p)) + 2 * i,
GFP_KERNEL);
if (!filp->private_data)
return -ENOMEM;
op = filp->private_data;
op->flag = 0;
op->alloclen = 2 * i;
strcpy (op->name, p);
op->value = (char *)(((unsigned long)(op->name + j + 4)) & ~3);
op->len = k;
if (k && prom_getproperty (node, p, op->value, i) < 0)
return -EIO;
op->value [k] = 0;
if (k) {
for (s = NULL, p = op->value; p < op->value + k; p++) {
if ((*p >= ' ' && *p <= '~') || *p == '\n') {
op->flag |= OPP_STRING;
s = p;
continue;
}
if (p > op->value && !*p && s == p - 1) {
if (p < op->value + k - 1)
op->flag |= OPP_STRINGLIST;
else
op->flag |= OPP_ASCIIZ;
continue;
}
if (k == 1 && !*p) {
op->flag |= (OPP_STRING|OPP_ASCIIZ);
break;
}
op->flag &= ~(OPP_STRING|OPP_STRINGLIST);
if (k & 3)
op->flag |= OPP_HEXSTRING;
else
op->flag |= OPP_BINARY;
break;
}
if (op->flag & OPP_STRINGLIST)
op->flag &= ~(OPP_STRING);
if (op->flag & OPP_ASCIIZ)
op->len--;
}
} else
op = filp->private_data;
if (!count || !(op->len || (op->flag & OPP_ASCIIZ)))
return 0;
if (*ppos >= 0xffffff || count >= 0xffffff)
return -EINVAL;
if (op->flag & OPP_STRINGLIST) {
for (k = 0, p = op->value; p < op->value + op->len; p++)
if (!*p)
k++;
i = op->len + 4 * k + 3;
} else if (op->flag & OPP_STRING) {
i = op->len + 3;
} else if (op->flag & OPP_BINARY) {
i = (op->len * 9) >> 2;
} else {
i = (op->len << 1) + 1;
}
k = *ppos;
if (k >= i) return 0;
if (count > i - k) count = i - k;
if (op->flag & OPP_STRING) {
if (!k) {
if (put_user('\'', buf))
return -EFAULT;
k++;
count--;
}
int i;
if (k + count >= i - 2)
j = i - 2 - k;
else
j = count;
if (j >= 0) {
if (copy_to_user(buf + k - *ppos,
op->value + k - 1, j))
return -EFAULT;
count -= j;
k += j;
}
for (i = 0; i < len; i++) {
unsigned char val = p[i];
if (count) {
if (put_user('\'', &buf [k++ - *ppos]))
return -EFAULT;
}
if (count > 1) {
if (put_user('\n', &buf [k++ - *ppos]))
return -EFAULT;
}
} else if (op->flag & OPP_STRINGLIST) {
char *tmp;
tmp = kmalloc (i, GFP_KERNEL);
if (!tmp)
return -ENOMEM;
s = tmp;
*s++ = '\'';
for (p = op->value; p < op->value + op->len; p++) {
if (!*p) {
strcpy(s, "' + '");
s += 5;
continue;
}
*s++ = *p;
}
strcpy(s, "'\n");
if (copy_to_user(buf, tmp + k, count))
return -EFAULT;
kfree(tmp);
k += count;
} else if (op->flag & OPP_BINARY) {
char buffer[10];
u32 *first, *last;
int first_off, last_cnt;
first = ((u32 *)op->value) + k / 9;
first_off = k % 9;
last = ((u32 *)op->value) + (k + count - 1) / 9;
last_cnt = (k + count) % 9;
if (!last_cnt) last_cnt = 9;
if (first == last) {
sprintf (buffer, "%08x.", *first);
if (copy_to_user(buf, buffer + first_off,
last_cnt - first_off))
return -EFAULT;
buf += last_cnt - first_off;
} else {
for (q = first; q <= last; q++) {
sprintf (buffer, "%08x.", *q);
if (q == first) {
if (copy_to_user(buf, buffer + first_off,
9 - first_off))
return -EFAULT;
buf += 9 - first_off;
} else if (q == last) {
if (copy_to_user(buf, buffer, last_cnt))
return -EFAULT;
buf += last_cnt;
} else {
if (copy_to_user(buf, buffer, 9))
return -EFAULT;
buf += 9;
}
}
}
if ((i && !val) ||
(val >= ' ' && val <= '~'))
continue;
if (last == (u32 *)(op->value + op->len - 4) && last_cnt == 9) {
if (put_user('\n', (buf - 1)))
return -EFAULT;
}
return 0;
}
k += count;
return 1;
}
} else if (op->flag & OPP_HEXSTRING) {
char buffer[3];
static int property_show(struct seq_file *f, void *v)
{
struct property *prop = f->private;
void *pval;
int len;
if ((k < i - 1) && (k & 1)) {
sprintf (buffer, "%02x",
(unsigned char) *(op->value + (k >> 1)) & 0xff);
if (put_user(buffer[1], &buf[k++ - *ppos]))
return -EFAULT;
count--;
}
len = prop->length;
pval = prop->value;
for (; (count > 1) && (k < i - 1); k += 2) {
sprintf (buffer, "%02x",
(unsigned char) *(op->value + (k >> 1)) & 0xff);
if (copy_to_user(buf + k - *ppos, buffer, 2))
return -EFAULT;
count -= 2;
}
if (is_string(pval, len)) {
while (len > 0) {
int n = strlen(pval);
if (count && (k < i - 1)) {
sprintf (buffer, "%02x",
(unsigned char) *(op->value + (k >> 1)) & 0xff);
if (put_user(buffer[0], &buf[k++ - *ppos]))
return -EFAULT;
count--;
}
seq_printf(f, "%s", (char *) pval);
if (count) {
if (put_user('\n', &buf [k++ - *ppos]))
return -EFAULT;
}
}
count = k - *ppos;
*ppos = k;
return count;
}
/* Skip over the NULL byte too. */
pval += n + 1;
len -= n + 1;
static ssize_t property_write(struct file *filp, const char __user *buf,
size_t count, loff_t *ppos)
{
int i, j, k;
char *p;
u32 *q;
void *b;
openprom_property *op;
if (*ppos >= 0xffffff || count >= 0xffffff)
return -EINVAL;
if (!filp->private_data) {
i = property_read (filp, NULL, 0, NULL);
if (i)
return i;
}
k = *ppos;
op = filp->private_data;
if (!(op->flag & OPP_STRING)) {
u32 *first, *last;
int first_off, last_cnt;
u32 mask, mask2;
char tmp [9];
int forcelen = 0;
j = k % 9;
for (i = 0; i < count; i++, j++) {
if (j == 9) j = 0;
if (!j) {
char ctmp;
if (get_user(ctmp, &buf[i]))
return -EFAULT;
if (ctmp != '.') {
if (ctmp != '\n') {
if (op->flag & OPP_BINARY)
return -EINVAL;
else
goto write_try_string;
} else {
count = i + 1;
forcelen = 1;
break;
}
}
} else {
char ctmp;
if (get_user(ctmp, &buf[i]))
return -EFAULT;
if (ctmp < '0' ||
(ctmp > '9' && ctmp < 'A') ||
(ctmp > 'F' && ctmp < 'a') ||
ctmp > 'f') {
if (op->flag & OPP_BINARY)
return -EINVAL;
else
goto write_try_string;
}
}
}
op->flag |= OPP_BINARY;
tmp [8] = 0;
i = ((count + k + 8) / 9) << 2;
if (op->alloclen <= i) {
b = kmalloc (sizeof (openprom_property) + 2 * i,
GFP_KERNEL);
if (!b)
return -ENOMEM;
memcpy (b, filp->private_data,
sizeof (openprom_property)
+ strlen (op->name) + op->alloclen);
memset (b + sizeof (openprom_property)
+ strlen (op->name) + op->alloclen,
0, 2 * i - op->alloclen);
op = b;
op->alloclen = 2*i;
b = filp->private_data;
filp->private_data = op;
kfree (b);
if (len > 0)
seq_printf(f, " + ");
}
first = ((u32 *)op->value) + (k / 9);
first_off = k % 9;
last = (u32 *)(op->value + i);
last_cnt = (k + count) % 9;
if (first + 1 == last) {
memset (tmp, '0', 8);
if (copy_from_user(tmp + first_off, buf,
(count + first_off > 8) ?
8 - first_off : count))
return -EFAULT;
mask = 0xffffffff;
mask2 = 0xffffffff;
for (j = 0; j < first_off; j++)
mask >>= 1;
for (j = 8 - count - first_off; j > 0; j--)
mask2 <<= 1;
mask &= mask2;
if (mask) {
*first &= ~mask;
*first |= simple_strtoul (tmp, NULL, 16);
op->flag |= OPP_DIRTY;
} else {
if (len & 3) {
while (len) {
len--;
if (len)
seq_printf(f, "%02x.",
*(unsigned char *) pval);
else
seq_printf(f, "%02x",
*(unsigned char *) pval);
pval++;
}
} else {
op->flag |= OPP_DIRTY;
for (q = first; q < last; q++) {
if (q == first) {
if (first_off < 8) {
memset (tmp, '0', 8);
if (copy_from_user(tmp + first_off,
buf,
8 - first_off))
return -EFAULT;
mask = 0xffffffff;
for (j = 0; j < first_off; j++)
mask >>= 1;
*q &= ~mask;
*q |= simple_strtoul (tmp,NULL,16);
}
buf += 9;
} else if ((q == last - 1) && last_cnt
&& (last_cnt < 8)) {
memset (tmp, '0', 8);
if (copy_from_user(tmp, buf, last_cnt))
return -EFAULT;
mask = 0xffffffff;
for (j = 0; j < 8 - last_cnt; j++)
mask <<= 1;
*q &= ~mask;
*q |= simple_strtoul (tmp, NULL, 16);
buf += last_cnt;
} else {
char tchars[2 * sizeof(long) + 1];
if (copy_from_user(tchars, buf, sizeof(tchars) - 1))
return -EFAULT;
tchars[sizeof(tchars) - 1] = '\0';
*q = simple_strtoul (tchars, NULL, 16);
buf += 9;
}
}
}
if (!forcelen) {
if (op->len < i)
op->len = i;
} else
op->len = i;
*ppos += count;
}
write_try_string:
if (!(op->flag & OPP_BINARY)) {
if (!(op->flag & (OPP_QUOTED | OPP_NOTQUOTED))) {
char ctmp;
/* No way, if somebody starts writing from the middle,
* we don't know whether he uses quotes around or not
*/
if (k > 0)
return -EINVAL;
if (get_user(ctmp, buf))
return -EFAULT;
if (ctmp == '\'') {
op->flag |= OPP_QUOTED;
buf++;
count--;
(*ppos)++;
if (!count) {
op->flag |= OPP_STRING;
return 1;
}
} else
op->flag |= OPP_NOTQUOTED;
}
op->flag |= OPP_STRING;
if (op->alloclen <= count + *ppos) {
b = kmalloc (sizeof (openprom_property)
+ 2 * (count + *ppos), GFP_KERNEL);
if (!b)
return -ENOMEM;
memcpy (b, filp->private_data,
sizeof (openprom_property)
+ strlen (op->name) + op->alloclen);
memset (b + sizeof (openprom_property)
+ strlen (op->name) + op->alloclen,
0, 2*(count - *ppos) - op->alloclen);
op = b;
op->alloclen = 2*(count + *ppos);
b = filp->private_data;
filp->private_data = op;
kfree (b);
}
p = op->value + *ppos - ((op->flag & OPP_QUOTED) ? 1 : 0);
if (copy_from_user(p, buf, count))
return -EFAULT;
op->flag |= OPP_DIRTY;
for (i = 0; i < count; i++, p++)
if (*p == '\n') {
*p = 0;
break;
while (len >= 4) {
len -= 4;
if (len)
seq_printf(f, "%08x.",
*(unsigned int *) pval);
else
seq_printf(f, "%08x",
*(unsigned int *) pval);
pval += 4;
}
if (i < count) {
op->len = p - op->value;
*ppos += i + 1;
if ((p > op->value) && (op->flag & OPP_QUOTED)
&& (*(p - 1) == '\''))
op->len--;
} else {
if (p - op->value > op->len)
op->len = p - op->value;
*ppos += count;
}
}
return *ppos - k;
seq_printf(f, "\n");
return 0;
}
int property_release (struct inode *inode, struct file *filp)
static void *property_start(struct seq_file *f, loff_t *pos)
{
openprom_property *op = filp->private_data;
int error;
u32 node;
if (!op)
return 0;
lock_kernel();
node = nodes[ptr_nod(inode->u.generic_ip)].node;
if (ptr_nod(inode->u.generic_ip) == aliases) {
if ((op->flag & OPP_DIRTY) && (op->flag & OPP_STRING)) {
char *p = op->name;
int i = (op->value - op->name) - strlen (op->name) - 1;
op->value [op->len] = 0;
*(op->value - 1) = ' ';
if (i) {
for (p = op->value - i - 2; p >= op->name; p--)
p[i] = *p;
p = op->name + i;
}
memcpy (p - 8, "nvalias ", 8);
prom_feval (p - 8);
}
} else if (op->flag & OPP_DIRTY) {
if (op->flag & OPP_STRING) {
op->value [op->len] = 0;
error = prom_setprop (node, op->name,
op->value, op->len + 1);
if (error <= 0)
printk (KERN_WARNING "openpromfs: "
"Couldn't write property %s\n",
op->name);
} else if ((op->flag & OPP_BINARY) || !op->len) {
error = prom_setprop (node, op->name,
op->value, op->len);
if (error <= 0)
printk (KERN_WARNING "openpromfs: "
"Couldn't write property %s\n",
op->name);
} else {
printk (KERN_WARNING "openpromfs: "
"Unknown property type of %s\n",
op->name);
}
if (*pos == 0)
return pos;
return NULL;
}
static void *property_next(struct seq_file *f, void *v, loff_t *pos)
{
(*pos)++;
return NULL;
}
static void property_stop(struct seq_file *f, void *v)
{
/* Nothing to do */
}
static struct seq_operations property_op = {
.start = property_start,
.next = property_next,
.stop = property_stop,
.show = property_show
};
static int property_open(struct inode *inode, struct file *file)
{
struct op_inode_info *oi = OP_I(inode);
int ret;
BUG_ON(oi->type != op_inode_prop);
ret = seq_open(file, &property_op);
if (!ret) {
struct seq_file *m = file->private_data;
m->private = oi->u.prop;
}
unlock_kernel();
kfree (filp->private_data);
return 0;
return ret;
}
static const struct file_operations openpromfs_prop_ops = {
.read = property_read,
.write = property_write,
.release = property_release,
.open = property_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static const struct file_operations openpromfs_nodenum_ops = {
.read = nodenum_read,
};
static int openpromfs_readdir(struct file *, void *, filldir_t);
static const struct file_operations openprom_operations = {
.read = generic_read_dir,
.readdir = openpromfs_readdir,
};
static struct inode_operations openprom_alias_inode_operations = {
.create = openpromfs_create,
.lookup = openpromfs_lookup,
.unlink = openpromfs_unlink,
};
static struct dentry *openpromfs_lookup(struct inode *, struct dentry *, struct nameidata *);
static struct inode_operations openprom_inode_operations = {
.lookup = openpromfs_lookup,
};
static int lookup_children(u16 n, const char * name, int len)
static struct dentry *openpromfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
int ret;
u16 node;
for (; n != 0xffff; n = nodes[n].next) {
node = nodes[n].child;
if (node != 0xffff) {
char buffer[128];
int i;
char *p;
while (node != 0xffff) {
if (prom_getname (nodes[node].node,
buffer, 128) >= 0) {
i = strlen (buffer);
if ((len == i)
&& !strncmp (buffer, name, len))
return NODE2INO(node);
p = strchr (buffer, '@');
if (p && (len == p - buffer)
&& !strncmp (buffer, name, len))
return NODE2INO(node);
}
node = nodes[node].next;
}
} else
continue;
ret = lookup_children (nodes[n].child, name, len);
if (ret) return ret;
}
return 0;
}
static struct dentry *openpromfs_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
int ino = 0;
#define OPFSL_DIR 0
#define OPFSL_PROPERTY 1
#define OPFSL_NODENUM 2
int type = 0;
char buffer[128];
char *p;
struct op_inode_info *ent_oi, *oi = OP_I(dir);
struct device_node *dp, *child;
struct property *prop;
enum op_inode_type ent_type;
union op_inode_data ent_data;
const char *name;
u32 n;
u16 dirnode;
unsigned int len;
int i;
struct inode *inode;
char buffer2[64];
unsigned int ino;
int len;
inode = NULL;
BUG_ON(oi->type != op_inode_node);
dp = oi->u.node;
name = dentry->d_name.name;
len = dentry->d_name.len;
lock_kernel();
if (name [0] == '.' && len == 5 && !strncmp (name + 1, "node", 4)) {
ino = NODEP2INO(NODE(dir->i_ino).first_prop);
type = OPFSL_NODENUM;
}
if (!ino) {
u16 node = NODE(dir->i_ino).child;
while (node != 0xffff) {
if (prom_getname (nodes[node].node, buffer, 128) >= 0) {
i = strlen (buffer);
if (len == i && !strncmp (buffer, name, len)) {
ino = NODE2INO(node);
type = OPFSL_DIR;
break;
}
p = strchr (buffer, '@');
if (p && (len == p - buffer)
&& !strncmp (buffer, name, len)) {
ino = NODE2INO(node);
type = OPFSL_DIR;
break;
}
}
node = nodes[node].next;
}
}
n = NODE(dir->i_ino).node;
dirnode = dir->i_ino - OPENPROM_FIRST_INO;
if (!ino) {
int j = NODEP2INO(NODE(dir->i_ino).first_prop);
if (dirnode != aliases) {
for (p = prom_firstprop (n, buffer2);
p && *p;
p = prom_nextprop (n, p, buffer2)) {
j++;
if ((len == strlen (p))
&& !strncmp (p, name, len)) {
ino = j;
type = OPFSL_PROPERTY;
break;
}
}
} else {
int k;
for (k = 0; k < aliases_nodes; k++) {
j++;
if (alias_names [k]
&& (len == strlen (alias_names [k]))
&& !strncmp (alias_names [k], name, len)) {
ino = j;
type = OPFSL_PROPERTY;
break;
}
}
mutex_lock(&op_mutex);
child = dp->child;
while (child) {
int n = strlen(child->path_component_name);
if (len == n &&
!strncmp(child->path_component_name, name, len)) {
ent_type = op_inode_node;
ent_data.node = child;
ino = child->unique_id;
goto found;
}
child = child->sibling;
}
if (!ino) {
ino = lookup_children (NODE(dir->i_ino).child, name, len);
if (ino)
type = OPFSL_DIR;
else {
unlock_kernel();
return ERR_PTR(-ENOENT);
prop = dp->properties;
while (prop) {
int n = strlen(prop->name);
if (len == n && !strncmp(prop->name, name, len)) {
ent_type = op_inode_prop;
ent_data.prop = prop;
ino = prop->unique_id;
goto found;
}
prop = prop->next;
}
inode = iget (dir->i_sb, ino);
unlock_kernel();
mutex_unlock(&op_mutex);
return ERR_PTR(-ENOENT);
found:
inode = iget(dir->i_sb, ino);
mutex_unlock(&op_mutex);
if (!inode)
return ERR_PTR(-EINVAL);
switch (type) {
case OPFSL_DIR:
ent_oi = OP_I(inode);
ent_oi->type = ent_type;
ent_oi->u = ent_data;
switch (ent_type) {
case op_inode_node:
inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
if (ino == OPENPROM_FIRST_INO + aliases) {
inode->i_mode |= S_IWUSR;
inode->i_op = &openprom_alias_inode_operations;
} else
inode->i_op = &openprom_inode_operations;
inode->i_op = &openprom_inode_operations;
inode->i_fop = &openprom_operations;
inode->i_nlink = 2;
break;
case OPFSL_NODENUM:
inode->i_mode = S_IFREG | S_IRUGO;
inode->i_fop = &openpromfs_nodenum_ops;
inode->i_nlink = 1;
inode->u.generic_ip = (void *)(long)(n);
break;
case OPFSL_PROPERTY:
if ((dirnode == options) && (len == 17)
&& !strncmp (name, "security-password", 17))
case op_inode_prop:
if (!strcmp(dp->name, "options") && (len == 17) &&
!strncmp (name, "security-password", 17))
inode->i_mode = S_IFREG | S_IRUSR | S_IWUSR;
else {
else
inode->i_mode = S_IFREG | S_IRUGO;
if (dirnode == options || dirnode == aliases) {
if (len != 4 || strncmp (name, "name", 4))
inode->i_mode |= S_IWUSR;
}
}
inode->i_fop = &openpromfs_prop_ops;
inode->i_nlink = 1;
if (inode->i_size < 0)
inode->i_size = 0;
inode->u.generic_ip = (void *)(long)(((u16)dirnode) |
(((u16)(ino - NODEP2INO(NODE(dir->i_ino).first_prop) - 1)) << 16));
inode->i_size = ent_oi->u.prop->length;
break;
}
......@@ -781,237 +263,89 @@ static struct dentry *openpromfs_lookup(struct inode * dir, struct dentry *dentr
static int openpromfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
{
struct inode *inode = filp->f_dentry->d_inode;
struct op_inode_info *oi = OP_I(inode);
struct device_node *dp = oi->u.node;
struct device_node *child;
struct property *prop;
unsigned int ino;
u32 n;
int i, j;
char buffer[128];
u16 node;
char *p;
char buffer2[64];
lock_kernel();
int i;
mutex_lock(&op_mutex);
ino = inode->i_ino;
i = filp->f_pos;
switch (i) {
case 0:
if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0) goto out;
if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0)
goto out;
i++;
filp->f_pos++;
/* fall thru */
case 1:
if (filldir(dirent, "..", 2, i,
(NODE(ino).parent == 0xffff) ?
OPENPROM_ROOT_INO : NODE2INO(NODE(ino).parent), DT_DIR) < 0)
if (filldir(dirent, "..", 2, i,
(dp->parent == NULL ?
OPENPROM_ROOT_INO :
dp->parent->unique_id), DT_DIR) < 0)
goto out;
i++;
filp->f_pos++;
/* fall thru */
default:
i -= 2;
node = NODE(ino).child;
while (i && node != 0xffff) {
node = nodes[node].next;
/* First, the children nodes as directories. */
child = dp->child;
while (i && child) {
child = child->sibling;
i--;
}
while (node != 0xffff) {
if (prom_getname (nodes[node].node, buffer, 128) < 0)
goto out;
if (filldir(dirent, buffer, strlen(buffer),
filp->f_pos, NODE2INO(node), DT_DIR) < 0)
while (child) {
if (filldir(dirent,
child->path_component_name,
strlen(child->path_component_name),
filp->f_pos, child->unique_id, DT_DIR) < 0)
goto out;
filp->f_pos++;
node = nodes[node].next;
child = child->sibling;
}
j = NODEP2INO(NODE(ino).first_prop);
if (!i) {
if (filldir(dirent, ".node", 5, filp->f_pos, j, DT_REG) < 0)
/* Next, the properties as files. */
prop = dp->properties;
while (i && prop) {
prop = prop->next;
i--;
}
while (prop) {
if (filldir(dirent, prop->name, strlen(prop->name),
filp->f_pos, prop->unique_id, DT_REG) < 0)
goto out;
filp->f_pos++;
} else
i--;
n = NODE(ino).node;
if (ino == OPENPROM_FIRST_INO + aliases) {
for (j++; i < aliases_nodes; i++, j++) {
if (alias_names [i]) {
if (filldir (dirent, alias_names [i],
strlen (alias_names [i]),
filp->f_pos, j, DT_REG) < 0) goto out;
filp->f_pos++;
}
}
} else {
for (p = prom_firstprop (n, buffer2);
p && *p;
p = prom_nextprop (n, p, buffer2)) {
j++;
if (i) i--;
else {
if (filldir(dirent, p, strlen(p),
filp->f_pos, j, DT_REG) < 0)
goto out;
filp->f_pos++;
}
}
prop = prop->next;
}
}
out:
unlock_kernel();
return 0;
}
static int openpromfs_create (struct inode *dir, struct dentry *dentry, int mode,
struct nameidata *nd)
{
char *p;
struct inode *inode;
if (!dir)
return -ENOENT;
if (dentry->d_name.len > 256)
return -EINVAL;
p = kmalloc (dentry->d_name.len + 1, GFP_KERNEL);
if (!p)
return -ENOMEM;
strncpy (p, dentry->d_name.name, dentry->d_name.len);
p [dentry->d_name.len] = 0;
lock_kernel();
if (aliases_nodes == ALIASES_NNODES) {
kfree(p);
unlock_kernel();
return -EIO;
}
alias_names [aliases_nodes++] = p;
inode = iget (dir->i_sb,
NODEP2INO(NODE(dir->i_ino).first_prop) + aliases_nodes);
if (!inode) {
unlock_kernel();
return -EINVAL;
}
inode->i_mode = S_IFREG | S_IRUGO | S_IWUSR;
inode->i_fop = &openpromfs_prop_ops;
inode->i_nlink = 1;
if (inode->i_size < 0) inode->i_size = 0;
inode->u.generic_ip = (void *)(long)(((u16)aliases) |
(((u16)(aliases_nodes - 1)) << 16));
unlock_kernel();
d_instantiate(dentry, inode);
mutex_unlock(&op_mutex);
return 0;
}
static int openpromfs_unlink (struct inode *dir, struct dentry *dentry)
{
unsigned int len;
char *p;
const char *name;
int i;
name = dentry->d_name.name;
len = dentry->d_name.len;
lock_kernel();
for (i = 0; i < aliases_nodes; i++)
if ((strlen (alias_names [i]) == len)
&& !strncmp (name, alias_names[i], len)) {
char buffer[512];
p = alias_names [i];
alias_names [i] = NULL;
kfree (p);
strcpy (buffer, "nvunalias ");
memcpy (buffer + 10, name, len);
buffer [10 + len] = 0;
prom_feval (buffer);
}
unlock_kernel();
return 0;
}
static kmem_cache_t *op_inode_cachep;
/* {{{ init section */
static int __init check_space (u16 n)
static struct inode *openprom_alloc_inode(struct super_block *sb)
{
unsigned long pages;
struct op_inode_info *oi;
if ((1 << alloced) * PAGE_SIZE < (n + 2) * sizeof(openpromfs_node)) {
pages = __get_free_pages (GFP_KERNEL, alloced + 1);
if (!pages)
return -1;
oi = kmem_cache_alloc(op_inode_cachep, SLAB_KERNEL);
if (!oi)
return NULL;
if (nodes) {
memcpy ((char *)pages, nodes,
(1 << alloced) * PAGE_SIZE);
free_pages ((unsigned long)nodes, alloced);
}
alloced++;
nodes = (openpromfs_node *)pages;
}
return 0;
return &oi->vfs_inode;
}
static u16 __init get_nodes (u16 parent, u32 node)
static void openprom_destroy_inode(struct inode *inode)
{
char *p;
u16 n = last_node++, i;
char buffer[64];
if (check_space (n) < 0)
return 0xffff;
nodes[n].parent = parent;
nodes[n].node = node;
nodes[n].next = 0xffff;
nodes[n].child = 0xffff;
nodes[n].first_prop = first_prop++;
if (!parent) {
char buffer[8];
int j;
if ((j = prom_getproperty (node, "name", buffer, 8)) >= 0) {
buffer[j] = 0;
if (!strcmp (buffer, "options"))
options = n;
else if (!strcmp (buffer, "aliases"))
aliases = n;
}
}
if (n != aliases)
for (p = prom_firstprop (node, buffer);
p && p != (char *)-1 && *p;
p = prom_nextprop (node, p, buffer))
first_prop++;
else {
char *q;
for (p = prom_firstprop (node, buffer);
p && p != (char *)-1 && *p;
p = prom_nextprop (node, p, buffer)) {
if (aliases_nodes == ALIASES_NNODES)
break;
for (i = 0; i < aliases_nodes; i++)
if (!strcmp (p, alias_names [i]))
break;
if (i < aliases_nodes)
continue;
q = kmalloc (strlen (p) + 1, GFP_KERNEL);
if (!q)
return 0xffff;
strcpy (q, p);
alias_names [aliases_nodes++] = q;
}
first_prop += ALIASES_NNODES;
}
node = prom_getchild (node);
if (node) {
parent = get_nodes (n, node);
if (parent == 0xffff)
return 0xffff;
nodes[n].child = parent;
while ((node = prom_getsibling (node)) != 0) {
i = get_nodes (n, node);
if (i == 0xffff)
return 0xffff;
nodes[parent].next = i;
parent = i;
}
}
return n;
kmem_cache_free(op_inode_cachep, OP_I(inode));
}
static void openprom_read_inode(struct inode * inode)
......@@ -1031,6 +365,8 @@ static int openprom_remount(struct super_block *sb, int *flags, char *data)
}
static struct super_operations openprom_sops = {
.alloc_inode = openprom_alloc_inode,
.destroy_inode = openprom_destroy_inode,
.read_inode = openprom_read_inode,
.statfs = simple_statfs,
.remount_fs = openprom_remount,
......@@ -1038,7 +374,8 @@ static struct super_operations openprom_sops = {
static int openprom_fill_super(struct super_block *s, void *data, int silent)
{
struct inode * root_inode;
struct inode *root_inode;
struct op_inode_info *oi;
s->s_flags |= MS_NOATIME;
s->s_blocksize = 1024;
......@@ -1049,6 +386,11 @@ static int openprom_fill_super(struct super_block *s, void *data, int silent)
root_inode = iget(s, OPENPROM_ROOT_INO);
if (!root_inode)
goto out_no_root;
oi = OP_I(root_inode);
oi->type = op_inode_node;
oi->u.node = of_find_node_by_path("/");
s->s_root = d_alloc_root(root_inode);
if (!s->s_root)
goto out_no_root;
......@@ -1073,29 +415,39 @@ static struct file_system_type openprom_fs_type = {
.kill_sb = kill_anon_super,
};
static void op_inode_init_once(void *data, kmem_cache_t * cachep, unsigned long flags)
{
struct op_inode_info *oi = (struct op_inode_info *) data;
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR)
inode_init_once(&oi->vfs_inode);
}
static int __init init_openprom_fs(void)
{
nodes = (openpromfs_node *)__get_free_pages(GFP_KERNEL, 0);
if (!nodes) {
printk (KERN_WARNING "openpromfs: can't get free page\n");
return -EIO;
}
if (get_nodes (0xffff, prom_root_node) == 0xffff) {
printk (KERN_WARNING "openpromfs: couldn't setup tree\n");
return -EIO;
}
nodes[last_node].first_prop = first_prop;
return register_filesystem(&openprom_fs_type);
int err;
op_inode_cachep = kmem_cache_create("op_inode_cache",
sizeof(struct op_inode_info),
0,
(SLAB_RECLAIM_ACCOUNT |
SLAB_MEM_SPREAD),
op_inode_init_once, NULL);
if (!op_inode_cachep)
return -ENOMEM;
err = register_filesystem(&openprom_fs_type);
if (err)
kmem_cache_destroy(op_inode_cachep);
return err;
}
static void __exit exit_openprom_fs(void)
{
int i;
unregister_filesystem(&openprom_fs_type);
free_pages ((unsigned long)nodes, alloced);
for (i = 0; i < aliases_nodes; i++)
kfree (alias_names [i]);
nodes = NULL;
kmem_cache_destroy(op_inode_cachep);
}
module_init(init_openprom_fs)
......
......@@ -249,6 +249,22 @@ extern void __iomem *ioremap(unsigned long offset, unsigned long size);
#define ioremap_nocache(X,Y) ioremap((X),(Y))
extern void iounmap(volatile void __iomem *addr);
#define ioread8(X) readb(X)
#define ioread16(X) readw(X)
#define ioread32(X) readl(X)
#define iowrite8(val,X) writeb(val,X)
#define iowrite16(val,X) writew(val,X)
#define iowrite32(val,X) writel(val,X)
/* Create a virtual mapping cookie for an IO port range */
extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
extern void ioport_unmap(void __iomem *);
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
/*
* Bus number may be in res->flags... somewhere.
*/
......
......@@ -35,6 +35,8 @@ struct property {
int length;
void *value;
struct property *next;
unsigned long _flags;
unsigned int unique_id;
};
struct device_node {
......@@ -58,8 +60,15 @@ struct device_node {
struct kref kref;
unsigned long _flags;
void *data;
unsigned int unique_id;
};
/* flag descriptions */
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
{
dn->pde = de;
......@@ -88,6 +97,7 @@ extern struct property *of_find_property(struct device_node *np,
extern int of_device_is_compatible(struct device_node *device, const char *);
extern void *of_get_property(struct device_node *node, const char *name,
int *lenp);
extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
extern int of_getintprop_default(struct device_node *np,
const char *name,
int def);
......
......@@ -162,4 +162,47 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
#endif /* PCI */
/* Now for the API extensions over the pci_ one */
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
#define dma_is_consistent(d) (1)
static inline int
dma_get_cache_alignment(void)
{
/* no easy way to get cache size on all processors, so return
* the maximum possible, to be safe */
return (1 << INTERNODE_CACHE_SHIFT);
}
static inline void
dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
unsigned long offset, size_t size,
enum dma_data_direction direction)
{
/* just sync everything, that's all the pci API can do */
dma_sync_single_for_cpu(dev, dma_handle, offset+size, direction);
}
static inline void
dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
unsigned long offset, size_t size,
enum dma_data_direction direction)
{
/* just sync everything, that's all the pci API can do */
dma_sync_single_for_device(dev, dma_handle, offset+size, direction);
}
static inline void
dma_cache_sync(void *vaddr, size_t size,
enum dma_data_direction direction)
{
/* could define this in terms of the dma_cache ... operations,
* but if you get this on a platform, you should convert the platform
* to using the generic device DMA API */
BUG();
}
#endif /* _ASM_SPARC64_DMA_MAPPING_H */
......@@ -208,7 +208,55 @@ static void sun_fd_enable_dma(void)
pdma_areasize = pdma_size;
}
extern irqreturn_t sparc_floppy_irq(int, void *, struct pt_regs *);
irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie, struct pt_regs *regs)
{
if (likely(doing_pdma)) {
void __iomem *stat = (void __iomem *) fdc_status;
unsigned char *vaddr = pdma_vaddr;
unsigned long size = pdma_size;
u8 val;
while (size) {
val = readb(stat);
if (unlikely(!(val & 0x80))) {
pdma_vaddr = vaddr;
pdma_size = size;
return IRQ_HANDLED;
}
if (unlikely(!(val & 0x20))) {
pdma_vaddr = vaddr;
pdma_size = size;
doing_pdma = 0;
goto main_interrupt;
}
if (val & 0x40) {
/* read */
*vaddr++ = readb(stat + 1);
} else {
unsigned char data = *vaddr++;
/* write */
writeb(data, stat + 1);
}
size--;
}
pdma_vaddr = vaddr;
pdma_size = size;
/* Send Terminal Count pulse to floppy controller. */
val = readb(auxio_register);
val |= AUXIO_AUX1_FTCNT;
writeb(val, auxio_register);
val &= ~AUXIO_AUX1_FTCNT;
writeb(val, auxio_register);
doing_pdma = 0;
}
main_interrupt:
return floppy_interrupt(irq, dev_cookie, regs);
}
static int sun_fd_request_irq(void)
{
......
......@@ -35,6 +35,8 @@ struct property {
int length;
void *value;
struct property *next;
unsigned long _flags;
unsigned int unique_id;
};
struct device_node {
......@@ -58,8 +60,15 @@ struct device_node {
struct kref kref;
unsigned long _flags;
void *data;
unsigned int unique_id;
};
/* flag descriptions */
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
{
dn->pde = de;
......@@ -88,6 +97,7 @@ extern struct property *of_find_property(struct device_node *np,
extern int of_device_is_compatible(struct device_node *device, const char *);
extern void *of_get_property(struct device_node *node, const char *name,
int *lenp);
extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
extern int of_getintprop_default(struct device_node *np,
const char *name,
int def);
......
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