#include <linux/proc_fs.h>
#include <asm/prom.h>
-#include <asm/pSeries_reconfig.h>
+#include <asm/machdep.h>
#include <asm/uaccess.h>
+#include <asm/pSeries_reconfig.h>
return parent;
}
-static struct notifier_block *pSeries_reconfig_chain;
+static BLOCKING_NOTIFIER_HEAD(pSeries_reconfig_chain);
int pSeries_reconfig_notifier_register(struct notifier_block *nb)
{
- return notifier_chain_register(&pSeries_reconfig_chain, nb);
+ return blocking_notifier_chain_register(&pSeries_reconfig_chain, nb);
}
void pSeries_reconfig_notifier_unregister(struct notifier_block *nb)
{
- notifier_chain_unregister(&pSeries_reconfig_chain, nb);
+ blocking_notifier_chain_unregister(&pSeries_reconfig_chain, nb);
}
static int pSeries_reconfig_add_node(const char *path, struct property *proplist)
goto out_err;
}
- err = notifier_call_chain(&pSeries_reconfig_chain,
+ err = blocking_notifier_call_chain(&pSeries_reconfig_chain,
PSERIES_RECONFIG_ADD, np);
if (err == NOTIFY_BAD) {
printk(KERN_ERR "Failed to add device node %s\n", path);
remove_node_proc_entries(np);
- notifier_call_chain(&pSeries_reconfig_chain,
+ blocking_notifier_call_chain(&pSeries_reconfig_chain,
PSERIES_RECONFIG_REMOVE, np);
of_detach_node(np);
return rv;
}
+static char *parse_node(char *buf, size_t bufsize, struct device_node **npp)
+{
+ char *handle_str;
+ phandle handle;
+ *npp = NULL;
+
+ handle_str = buf;
+
+ buf = strchr(buf, ' ');
+ if (!buf)
+ return NULL;
+ *buf = '\0';
+ buf++;
+
+ handle = simple_strtoul(handle_str, NULL, 10);
+
+ *npp = of_find_node_by_phandle(handle);
+ return buf;
+}
+
+static int do_add_property(char *buf, size_t bufsize)
+{
+ struct property *prop = NULL;
+ struct device_node *np;
+ unsigned char *value;
+ char *name, *end;
+ int length;
+ end = buf + bufsize;
+ buf = parse_node(buf, bufsize, &np);
+
+ if (!np)
+ return -ENODEV;
+
+ if (parse_next_property(buf, end, &name, &length, &value) == NULL)
+ return -EINVAL;
+
+ prop = new_property(name, length, value, NULL);
+ if (!prop)
+ return -ENOMEM;
+
+ prom_add_property(np, prop);
+
+ return 0;
+}
+
+static int do_remove_property(char *buf, size_t bufsize)
+{
+ struct device_node *np;
+ char *tmp;
+ struct property *prop;
+ buf = parse_node(buf, bufsize, &np);
+
+ if (!np)
+ return -ENODEV;
+
+ tmp = strchr(buf,' ');
+ if (tmp)
+ *tmp = '\0';
+
+ if (strlen(buf) == 0)
+ return -EINVAL;
+
+ prop = of_find_property(np, buf, NULL);
+
+ return prom_remove_property(np, prop);
+}
+
+static int do_update_property(char *buf, size_t bufsize)
+{
+ struct device_node *np;
+ unsigned char *value;
+ char *name, *end;
+ int length;
+ struct property *newprop, *oldprop;
+ buf = parse_node(buf, bufsize, &np);
+ end = buf + bufsize;
+
+ if (!np)
+ return -ENODEV;
+
+ if (parse_next_property(buf, end, &name, &length, &value) == NULL)
+ return -EINVAL;
+
+ newprop = new_property(name, length, value, NULL);
+ if (!newprop)
+ return -ENOMEM;
+
+ oldprop = of_find_property(np, name,NULL);
+ if (!oldprop)
+ return -ENODEV;
+
+ return prom_update_property(np, newprop, oldprop);
+}
+
/**
* ofdt_write - perform operations on the Open Firmware device tree
*
rv = do_add_node(tmp, count - (tmp - kbuf));
else if (!strcmp(kbuf, "remove_node"))
rv = do_remove_node(tmp);
+ else if (!strcmp(kbuf, "add_property"))
+ rv = do_add_property(tmp, count - (tmp - kbuf));
+ else if (!strcmp(kbuf, "remove_property"))
+ rv = do_remove_property(tmp, count - (tmp - kbuf));
+ else if (!strcmp(kbuf, "update_property"))
+ rv = do_update_property(tmp, count - (tmp - kbuf));
else
rv = -EINVAL;
out:
{
struct proc_dir_entry *ent;
- if (!(systemcfg->platform & PLATFORM_PSERIES))
+ if (!machine_is(pseries))
return 0;
ent = create_proc_entry("ppc64/ofdt", S_IWUSR, NULL);