diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/prom/tree_32.c')
-rw-r--r-- | ANDROID_3.4.5/arch/sparc/prom/tree_32.c | 309 |
1 files changed, 0 insertions, 309 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/prom/tree_32.c b/ANDROID_3.4.5/arch/sparc/prom/tree_32.c deleted file mode 100644 index f30e8d03..00000000 --- a/ANDROID_3.4.5/arch/sparc/prom/tree_32.c +++ /dev/null @@ -1,309 +0,0 @@ -/* - * tree.c: Basic device tree traversal/scanning for the Linux - * prom library. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/string.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/ctype.h> -#include <linux/module.h> - -#include <asm/openprom.h> -#include <asm/oplib.h> - -extern void restore_current(void); - -static char promlib_buf[128]; - -/* Internal version of prom_getchild that does not alter return values. */ -static phandle __prom_getchild(phandle node) -{ - unsigned long flags; - phandle cnode; - - spin_lock_irqsave(&prom_lock, flags); - cnode = prom_nodeops->no_child(node); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return cnode; -} - -/* Return the child of node 'node' or zero if no this node has no - * direct descendent. - */ -phandle prom_getchild(phandle node) -{ - phandle cnode; - - if ((s32)node == -1) - return 0; - - cnode = __prom_getchild(node); - if (cnode == 0 || (s32)cnode == -1) - return 0; - - return cnode; -} -EXPORT_SYMBOL(prom_getchild); - -/* Internal version of prom_getsibling that does not alter return values. */ -static phandle __prom_getsibling(phandle node) -{ - unsigned long flags; - phandle cnode; - - spin_lock_irqsave(&prom_lock, flags); - cnode = prom_nodeops->no_nextnode(node); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return cnode; -} - -/* Return the next sibling of node 'node' or zero if no more siblings - * at this level of depth in the tree. - */ -phandle prom_getsibling(phandle node) -{ - phandle sibnode; - - if ((s32)node == -1) - return 0; - - sibnode = __prom_getsibling(node); - if (sibnode == 0 || (s32)sibnode == -1) - return 0; - - return sibnode; -} -EXPORT_SYMBOL(prom_getsibling); - -/* Return the length in bytes of property 'prop' at node 'node'. - * Return -1 on error. - */ -int prom_getproplen(phandle node, const char *prop) -{ - int ret; - unsigned long flags; - - if((!node) || (!prop)) - return -1; - - spin_lock_irqsave(&prom_lock, flags); - ret = prom_nodeops->no_proplen(node, prop); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return ret; -} -EXPORT_SYMBOL(prom_getproplen); - -/* Acquire a property 'prop' at node 'node' and place it in - * 'buffer' which has a size of 'bufsize'. If the acquisition - * was successful the length will be returned, else -1 is returned. - */ -int prom_getproperty(phandle node, const char *prop, char *buffer, int bufsize) -{ - int plen, ret; - unsigned long flags; - - plen = prom_getproplen(node, prop); - if((plen > bufsize) || (plen == 0) || (plen == -1)) - return -1; - /* Ok, things seem all right. */ - spin_lock_irqsave(&prom_lock, flags); - ret = prom_nodeops->no_getprop(node, prop, buffer); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return ret; -} -EXPORT_SYMBOL(prom_getproperty); - -/* Acquire an integer property and return its value. Returns -1 - * on failure. - */ -int prom_getint(phandle node, char *prop) -{ - static int intprop; - - if(prom_getproperty(node, prop, (char *) &intprop, sizeof(int)) != -1) - return intprop; - - return -1; -} -EXPORT_SYMBOL(prom_getint); - -/* Acquire an integer property, upon error return the passed default - * integer. - */ -int prom_getintdefault(phandle node, char *property, int deflt) -{ - int retval; - - retval = prom_getint(node, property); - if(retval == -1) return deflt; - - return retval; -} -EXPORT_SYMBOL(prom_getintdefault); - -/* Acquire a boolean property, 1=TRUE 0=FALSE. */ -int prom_getbool(phandle node, char *prop) -{ - int retval; - - retval = prom_getproplen(node, prop); - if(retval == -1) return 0; - return 1; -} -EXPORT_SYMBOL(prom_getbool); - -/* Acquire a property whose value is a string, returns a null - * string on error. The char pointer is the user supplied string - * buffer. - */ -void prom_getstring(phandle node, char *prop, char *user_buf, int ubuf_size) -{ - int len; - - len = prom_getproperty(node, prop, user_buf, ubuf_size); - if(len != -1) return; - user_buf[0] = 0; -} -EXPORT_SYMBOL(prom_getstring); - - -/* Search siblings at 'node_start' for a node with name - * 'nodename'. Return node if successful, zero if not. - */ -phandle prom_searchsiblings(phandle node_start, char *nodename) -{ - - phandle thisnode; - int error; - - for(thisnode = node_start; thisnode; - thisnode=prom_getsibling(thisnode)) { - error = prom_getproperty(thisnode, "name", promlib_buf, - sizeof(promlib_buf)); - /* Should this ever happen? */ - if(error == -1) continue; - if(strcmp(nodename, promlib_buf)==0) return thisnode; - } - - return 0; -} -EXPORT_SYMBOL(prom_searchsiblings); - -/* Interal version of nextprop that does not alter return values. */ -static char *__prom_nextprop(phandle node, char * oprop) -{ - unsigned long flags; - char *prop; - - spin_lock_irqsave(&prom_lock, flags); - prop = prom_nodeops->no_nextprop(node, oprop); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return prop; -} - -/* Return the property type string after property type 'oprop' - * at node 'node' . Returns empty string if no more - * property types for this node. - */ -char *prom_nextprop(phandle node, char *oprop, char *buffer) -{ - if (node == 0 || (s32)node == -1) - return ""; - - return __prom_nextprop(node, oprop); -} -EXPORT_SYMBOL(prom_nextprop); - -phandle prom_finddevice(char *name) -{ - char nbuf[128]; - char *s = name, *d; - phandle node = prom_root_node, node2; - unsigned int which_io, phys_addr; - struct linux_prom_registers reg[PROMREG_MAX]; - - while (*s++) { - if (!*s) return node; /* path '.../' is legal */ - node = prom_getchild(node); - - for (d = nbuf; *s != 0 && *s != '@' && *s != '/';) - *d++ = *s++; - *d = 0; - - node = prom_searchsiblings(node, nbuf); - if (!node) - return 0; - - if (*s == '@') { - if (isxdigit(s[1]) && s[2] == ',') { - which_io = simple_strtoul(s+1, NULL, 16); - phys_addr = simple_strtoul(s+3, &d, 16); - if (d != s + 3 && (!*d || *d == '/') - && d <= s + 3 + 8) { - node2 = node; - while (node2 && (s32)node2 != -1) { - if (prom_getproperty (node2, "reg", (char *)reg, sizeof (reg)) > 0) { - if (which_io == reg[0].which_io && phys_addr == reg[0].phys_addr) { - node = node2; - break; - } - } - node2 = prom_getsibling(node2); - if (!node2 || (s32)node2 == -1) - break; - node2 = prom_searchsiblings(prom_getsibling(node2), nbuf); - } - } - } - while (*s != 0 && *s != '/') s++; - } - } - return node; -} -EXPORT_SYMBOL(prom_finddevice); - -/* Set property 'pname' at node 'node' to value 'value' which has a length - * of 'size' bytes. Return the number of bytes the prom accepted. - */ -int prom_setprop(phandle node, const char *pname, char *value, int size) -{ - unsigned long flags; - int ret; - - if (size == 0) - return 0; - if ((pname == NULL) || (value == NULL)) - return 0; - spin_lock_irqsave(&prom_lock, flags); - ret = prom_nodeops->no_setprop(node, pname, value, size); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return ret; -} -EXPORT_SYMBOL(prom_setprop); - -phandle prom_inst2pkg(int inst) -{ - phandle node; - unsigned long flags; - - spin_lock_irqsave(&prom_lock, flags); - node = (*romvec->pv_v2devops.v2_inst2pkg)(inst); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - if ((s32)node == -1) - return 0; - return node; -} |