From 5de18cde3b748aafc6d187d7655ba42f2260501d Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 29 Nov 2008 22:16:52 -0800 Subject: sparc,sparc64: unify prom/ - all files with identical names copied and renamed to *_64.c - the remaning files copied as is - added sparc64 specific files to sparc/prom/Makefile - teach sparc64 Makefile to look into sparc/prom/ - delete unused Makefile from sparc64/prom/ linking order was not kept for sparc64 with this change. It was not possible to keep linking order for both sparc and sparc64 and as sparc64 see more testing than sparc it was natural to break linking order on sparc64. Should it have any effect it would be detected sooner this way. printf_32.c and printf_64.c are obvious candidates to be merged but they are not 100% equal so that was left for later Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- arch/sparc/prom/tree_64.c | 299 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 299 insertions(+) create mode 100644 arch/sparc/prom/tree_64.c (limited to 'arch/sparc/prom/tree_64.c') diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c new file mode 100644 index 000000000000..281aea44790b --- /dev/null +++ b/arch/sparc/prom/tree_64.c @@ -0,0 +1,299 @@ +/* + * tree.c: Basic device tree traversal/scanning for the Linux + * prom library. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#include +#include +#include +#include + +#include +#include +#include + +/* Return the child of node 'node' or zero if no this node has no + * direct descendent. + */ +inline int __prom_getchild(int node) +{ + return p1275_cmd ("child", P1275_INOUT(1, 1), node); +} + +inline int prom_getchild(int node) +{ + int cnode; + + if(node == -1) return 0; + cnode = __prom_getchild(node); + if(cnode == -1) return 0; + return (int)cnode; +} + +inline int prom_getparent(int node) +{ + int cnode; + + if(node == -1) return 0; + cnode = p1275_cmd ("parent", P1275_INOUT(1, 1), node); + if(cnode == -1) return 0; + return (int)cnode; +} + +/* Return the next sibling of node 'node' or zero if no more siblings + * at this level of depth in the tree. + */ +inline int __prom_getsibling(int node) +{ + return p1275_cmd(prom_peer_name, P1275_INOUT(1, 1), node); +} + +inline int prom_getsibling(int node) +{ + int sibnode; + + if (node == -1) + return 0; + sibnode = __prom_getsibling(node); + if (sibnode == -1) + return 0; + + return sibnode; +} + +/* Return the length in bytes of property 'prop' at node 'node'. + * Return -1 on error. + */ +inline int prom_getproplen(int node, const char *prop) +{ + if((!node) || (!prop)) return -1; + return p1275_cmd ("getproplen", + P1275_ARG(1,P1275_ARG_IN_STRING)| + P1275_INOUT(2, 1), + node, prop); +} + +/* 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. + */ +inline int prom_getproperty(int node, const char *prop, + char *buffer, int bufsize) +{ + int plen; + + plen = prom_getproplen(node, prop); + if ((plen > bufsize) || (plen == 0) || (plen == -1)) { + return -1; + } else { + /* Ok, things seem all right. */ + return p1275_cmd(prom_getprop_name, + P1275_ARG(1,P1275_ARG_IN_STRING)| + P1275_ARG(2,P1275_ARG_OUT_BUF)| + P1275_INOUT(4, 1), + node, prop, buffer, P1275_SIZE(plen)); + } +} + +/* Acquire an integer property and return its value. Returns -1 + * on failure. + */ +inline int prom_getint(int node, const char *prop) +{ + int intprop; + + if(prom_getproperty(node, prop, (char *) &intprop, sizeof(int)) != -1) + return intprop; + + return -1; +} + +/* Acquire an integer property, upon error return the passed default + * integer. + */ + +int prom_getintdefault(int node, const char *property, int deflt) +{ + int retval; + + retval = prom_getint(node, property); + if(retval == -1) return deflt; + + return retval; +} + +/* Acquire a boolean property, 1=TRUE 0=FALSE. */ +int prom_getbool(int node, const char *prop) +{ + int retval; + + retval = prom_getproplen(node, prop); + if(retval == -1) return 0; + return 1; +} + +/* 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(int node, const 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; + return; +} + + +/* Does the device at node 'node' have name 'name'? + * YES = 1 NO = 0 + */ +int prom_nodematch(int node, const char *name) +{ + char namebuf[128]; + prom_getproperty(node, "name", namebuf, sizeof(namebuf)); + if(strcmp(namebuf, name) == 0) return 1; + return 0; +} + +/* Search siblings at 'node_start' for a node with name + * 'nodename'. Return node if successful, zero if not. + */ +int prom_searchsiblings(int node_start, const char *nodename) +{ + + int thisnode, error; + char promlib_buf[128]; + + 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; +} + +/* Return the first property type for node 'node'. + * buffer should be at least 32B in length + */ +inline char *prom_firstprop(int node, char *buffer) +{ + *buffer = 0; + if(node == -1) return buffer; + p1275_cmd ("nextprop", P1275_ARG(2,P1275_ARG_OUT_32B)| + P1275_INOUT(3, 0), + node, (char *) 0x0, buffer); + return buffer; +} + +/* Return the property type string after property type 'oprop' + * at node 'node' . Returns NULL string if no more + * property types for this node. + */ +inline char *prom_nextprop(int node, const char *oprop, char *buffer) +{ + char buf[32]; + + if(node == -1) { + *buffer = 0; + return buffer; + } + if (oprop == buffer) { + strcpy (buf, oprop); + oprop = buf; + } + p1275_cmd ("nextprop", P1275_ARG(1,P1275_ARG_IN_STRING)| + P1275_ARG(2,P1275_ARG_OUT_32B)| + P1275_INOUT(3, 0), + node, oprop, buffer); + return buffer; +} + +int +prom_finddevice(const char *name) +{ + if (!name) + return 0; + return p1275_cmd(prom_finddev_name, + P1275_ARG(0,P1275_ARG_IN_STRING)| + P1275_INOUT(1, 1), + name); +} + +int prom_node_has_property(int node, const char *prop) +{ + char buf [32]; + + *buf = 0; + do { + prom_nextprop(node, buf, buf); + if(!strcmp(buf, prop)) + return 1; + } while (*buf); + return 0; +} + +/* 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(int node, const char *pname, char *value, int size) +{ + if (size == 0) + return 0; + if ((pname == 0) || (value == 0)) + return 0; + +#ifdef CONFIG_SUN_LDOMS + if (ldom_domaining_enabled) { + ldom_set_var(pname, value); + return 0; + } +#endif + return p1275_cmd ("setprop", P1275_ARG(1,P1275_ARG_IN_STRING)| + P1275_ARG(2,P1275_ARG_IN_BUF)| + P1275_INOUT(4, 1), + node, pname, value, P1275_SIZE(size)); +} + +inline int prom_inst2pkg(int inst) +{ + int node; + + node = p1275_cmd ("instance-to-package", P1275_INOUT(1, 1), inst); + if (node == -1) return 0; + return node; +} + +/* Return 'node' assigned to a particular prom 'path' + * FIXME: Should work for v0 as well + */ +int +prom_pathtoinode(const char *path) +{ + int node, inst; + + inst = prom_devopen (path); + if (inst == 0) return 0; + node = prom_inst2pkg (inst); + prom_devclose (inst); + if (node == -1) return 0; + return node; +} + +int prom_ihandle2path(int handle, char *buffer, int bufsize) +{ + return p1275_cmd("instance-to-path", + P1275_ARG(1,P1275_ARG_OUT_BUF)| + P1275_INOUT(3, 1), + handle, buffer, P1275_SIZE(bufsize)); +} -- cgit v1.2.3-59-g8ed1b