forked from Minki/linux
pcmcia: move high level CIS access code to separate file
No code changes. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski
parent
b9300aa744
commit
5c128e8432
@ -6,7 +6,7 @@ pcmcia_core-y += cs.o rsrc_mgr.o socket_sysfs.o
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pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o
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obj-$(CONFIG_PCCARD) += pcmcia_core.o
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pcmcia-y += ds.o pcmcia_resource.o cistpl.o
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pcmcia-y += ds.o pcmcia_resource.o cistpl.o pcmcia_cis.o
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pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o
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obj-$(CONFIG_PCMCIA) += pcmcia.o
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@ -1361,106 +1361,6 @@ int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse)
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EXPORT_SYMBOL(pcmcia_parse_tuple);
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/**
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* pccard_read_tuple() - internal CIS tuple access
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* @s: the struct pcmcia_socket where the card is inserted
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* @function: the device function we loop for
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* @code: which CIS code shall we look for?
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* @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
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*
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* pccard_read_tuple() reads out one tuple and attempts to parse it
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*/
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int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
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cisdata_t code, void *parse)
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{
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tuple_t tuple;
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cisdata_t *buf;
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int ret;
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buf = kmalloc(256, GFP_KERNEL);
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if (buf == NULL) {
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dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
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return -ENOMEM;
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}
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tuple.DesiredTuple = code;
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tuple.Attributes = 0;
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if (function == BIND_FN_ALL)
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tuple.Attributes = TUPLE_RETURN_COMMON;
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ret = pccard_get_first_tuple(s, function, &tuple);
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if (ret != 0)
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goto done;
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tuple.TupleData = buf;
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tuple.TupleOffset = 0;
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tuple.TupleDataMax = 255;
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ret = pccard_get_tuple_data(s, &tuple);
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if (ret != 0)
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goto done;
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ret = pcmcia_parse_tuple(&tuple, parse);
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done:
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kfree(buf);
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return ret;
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}
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/**
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* pccard_loop_tuple() - loop over tuples in the CIS
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* @s: the struct pcmcia_socket where the card is inserted
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* @function: the device function we loop for
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* @code: which CIS code shall we look for?
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* @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
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* @priv_data: private data to be passed to the loop_tuple function.
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* @loop_tuple: function to call for each CIS entry of type @function. IT
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* gets passed the raw tuple, the paresed tuple (if @parse is
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* set) and @priv_data.
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*
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* pccard_loop_tuple() loops over all CIS entries of type @function, and
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* calls the @loop_tuple function for each entry. If the call to @loop_tuple
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* returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
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*/
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int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
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cisdata_t code, cisparse_t *parse, void *priv_data,
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int (*loop_tuple) (tuple_t *tuple,
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cisparse_t *parse,
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void *priv_data))
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{
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tuple_t tuple;
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cisdata_t *buf;
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int ret;
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buf = kzalloc(256, GFP_KERNEL);
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if (buf == NULL) {
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dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
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return -ENOMEM;
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}
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tuple.TupleData = buf;
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tuple.TupleDataMax = 255;
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tuple.TupleOffset = 0;
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tuple.DesiredTuple = code;
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tuple.Attributes = 0;
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ret = pccard_get_first_tuple(s, function, &tuple);
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while (!ret) {
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if (pccard_get_tuple_data(s, &tuple))
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goto next_entry;
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if (parse)
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if (pcmcia_parse_tuple(&tuple, parse))
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goto next_entry;
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ret = loop_tuple(&tuple, parse, priv_data);
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if (!ret)
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break;
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next_entry:
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ret = pccard_get_next_tuple(s, function, &tuple);
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}
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kfree(buf);
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return ret;
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}
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/**
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* pccard_validate_cis() - check whether card has a sensible CIS
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* @s: the struct pcmcia_socket we are to check
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355
drivers/pcmcia/pcmcia_cis.c
Normal file
355
drivers/pcmcia/pcmcia_cis.c
Normal file
@ -0,0 +1,355 @@
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/*
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* PCMCIA high-level CIS access functions
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*
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* Copyright (C) 1999 David A. Hinds
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* Copyright (C) 2004-2009 Dominik Brodowski
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cisreg.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/ss.h>
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#include <pcmcia/cs.h>
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#include <pcmcia/ds.h>
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#include "cs_internal.h"
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/**
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* pccard_read_tuple() - internal CIS tuple access
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* @s: the struct pcmcia_socket where the card is inserted
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* @function: the device function we loop for
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* @code: which CIS code shall we look for?
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* @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
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*
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* pccard_read_tuple() reads out one tuple and attempts to parse it
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*/
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int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
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cisdata_t code, void *parse)
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{
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tuple_t tuple;
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cisdata_t *buf;
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int ret;
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buf = kmalloc(256, GFP_KERNEL);
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if (buf == NULL) {
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dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
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return -ENOMEM;
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}
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tuple.DesiredTuple = code;
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tuple.Attributes = 0;
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if (function == BIND_FN_ALL)
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tuple.Attributes = TUPLE_RETURN_COMMON;
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ret = pccard_get_first_tuple(s, function, &tuple);
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if (ret != 0)
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goto done;
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tuple.TupleData = buf;
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tuple.TupleOffset = 0;
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tuple.TupleDataMax = 255;
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ret = pccard_get_tuple_data(s, &tuple);
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if (ret != 0)
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goto done;
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ret = pcmcia_parse_tuple(&tuple, parse);
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done:
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kfree(buf);
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return ret;
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}
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/**
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* pccard_loop_tuple() - loop over tuples in the CIS
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* @s: the struct pcmcia_socket where the card is inserted
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* @function: the device function we loop for
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* @code: which CIS code shall we look for?
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* @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
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* @priv_data: private data to be passed to the loop_tuple function.
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* @loop_tuple: function to call for each CIS entry of type @function. IT
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* gets passed the raw tuple, the paresed tuple (if @parse is
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* set) and @priv_data.
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*
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* pccard_loop_tuple() loops over all CIS entries of type @function, and
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* calls the @loop_tuple function for each entry. If the call to @loop_tuple
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* returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
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*/
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int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
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cisdata_t code, cisparse_t *parse, void *priv_data,
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int (*loop_tuple) (tuple_t *tuple,
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cisparse_t *parse,
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void *priv_data))
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{
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tuple_t tuple;
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cisdata_t *buf;
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int ret;
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buf = kzalloc(256, GFP_KERNEL);
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if (buf == NULL) {
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dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
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return -ENOMEM;
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}
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tuple.TupleData = buf;
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tuple.TupleDataMax = 255;
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tuple.TupleOffset = 0;
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tuple.DesiredTuple = code;
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tuple.Attributes = 0;
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ret = pccard_get_first_tuple(s, function, &tuple);
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while (!ret) {
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if (pccard_get_tuple_data(s, &tuple))
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goto next_entry;
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if (parse)
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if (pcmcia_parse_tuple(&tuple, parse))
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goto next_entry;
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ret = loop_tuple(&tuple, parse, priv_data);
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if (!ret)
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break;
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next_entry:
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ret = pccard_get_next_tuple(s, function, &tuple);
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}
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kfree(buf);
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return ret;
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}
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struct pcmcia_cfg_mem {
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struct pcmcia_device *p_dev;
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void *priv_data;
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int (*conf_check) (struct pcmcia_device *p_dev,
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cistpl_cftable_entry_t *cfg,
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cistpl_cftable_entry_t *dflt,
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unsigned int vcc,
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void *priv_data);
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cisparse_t parse;
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cistpl_cftable_entry_t dflt;
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};
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/**
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* pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
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*
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* pcmcia_do_loop_config() is the internal callback for the call from
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* pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
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* by a struct pcmcia_cfg_mem.
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*/
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static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
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{
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cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
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struct pcmcia_cfg_mem *cfg_mem = priv;
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/* default values */
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cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
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if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
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cfg_mem->dflt = *cfg;
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return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
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cfg_mem->p_dev->socket->socket.Vcc,
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cfg_mem->priv_data);
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}
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/**
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* pcmcia_loop_config() - loop over configuration options
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* @p_dev: the struct pcmcia_device which we need to loop for.
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* @conf_check: function to call for each configuration option.
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* It gets passed the struct pcmcia_device, the CIS data
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* describing the configuration option, and private data
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* being passed to pcmcia_loop_config()
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* @priv_data: private data to be passed to the conf_check function.
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*
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* pcmcia_loop_config() loops over all configuration options, and calls
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* the driver-specific conf_check() for each one, checking whether
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* it is a valid one. Returns 0 on success or errorcode otherwise.
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*/
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int pcmcia_loop_config(struct pcmcia_device *p_dev,
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int (*conf_check) (struct pcmcia_device *p_dev,
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cistpl_cftable_entry_t *cfg,
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cistpl_cftable_entry_t *dflt,
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unsigned int vcc,
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void *priv_data),
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void *priv_data)
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{
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struct pcmcia_cfg_mem *cfg_mem;
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int ret;
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cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
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if (cfg_mem == NULL)
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return -ENOMEM;
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cfg_mem->p_dev = p_dev;
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cfg_mem->conf_check = conf_check;
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cfg_mem->priv_data = priv_data;
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ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
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CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
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cfg_mem, pcmcia_do_loop_config);
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kfree(cfg_mem);
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return ret;
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}
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EXPORT_SYMBOL(pcmcia_loop_config);
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struct pcmcia_loop_mem {
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struct pcmcia_device *p_dev;
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void *priv_data;
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int (*loop_tuple) (struct pcmcia_device *p_dev,
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tuple_t *tuple,
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void *priv_data);
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};
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/**
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* pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
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*
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* pcmcia_do_loop_tuple() is the internal callback for the call from
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* pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
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* by a struct pcmcia_cfg_mem.
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*/
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static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
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{
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struct pcmcia_loop_mem *loop = priv;
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return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
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};
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/**
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* pcmcia_loop_tuple() - loop over tuples in the CIS
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* @p_dev: the struct pcmcia_device which we need to loop for.
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* @code: which CIS code shall we look for?
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* @priv_data: private data to be passed to the loop_tuple function.
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* @loop_tuple: function to call for each CIS entry of type @function. IT
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* gets passed the raw tuple and @priv_data.
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*
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* pcmcia_loop_tuple() loops over all CIS entries of type @function, and
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* calls the @loop_tuple function for each entry. If the call to @loop_tuple
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* returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
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*/
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int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
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int (*loop_tuple) (struct pcmcia_device *p_dev,
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tuple_t *tuple,
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void *priv_data),
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void *priv_data)
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{
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struct pcmcia_loop_mem loop = {
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.p_dev = p_dev,
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.loop_tuple = loop_tuple,
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.priv_data = priv_data};
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return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
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&loop, pcmcia_do_loop_tuple);
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}
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EXPORT_SYMBOL(pcmcia_loop_tuple);
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struct pcmcia_loop_get {
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size_t len;
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cisdata_t **buf;
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};
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/**
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* pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
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*
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* pcmcia_do_get_tuple() is the internal callback for the call from
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* pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
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* the first tuple, return 0 unconditionally. Create a memory buffer large
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* enough to hold the content of the tuple, and fill it with the tuple data.
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* The caller is responsible to free the buffer.
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*/
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static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
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void *priv)
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{
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struct pcmcia_loop_get *get = priv;
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*get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
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if (*get->buf) {
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get->len = tuple->TupleDataLen;
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memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
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} else
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dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
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return 0;
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}
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/**
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* pcmcia_get_tuple() - get first tuple from CIS
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* @p_dev: the struct pcmcia_device which we need to loop for.
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* @code: which CIS code shall we look for?
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* @buf: pointer to store the buffer to.
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*
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* pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
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* It returns the buffer length (or zero). The caller is responsible to free
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* the buffer passed in @buf.
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*/
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size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
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unsigned char **buf)
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{
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struct pcmcia_loop_get get = {
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.len = 0,
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.buf = buf,
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};
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*get.buf = NULL;
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pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
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return get.len;
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}
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EXPORT_SYMBOL(pcmcia_get_tuple);
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/**
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* pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
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*
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* pcmcia_do_get_mac() is the internal callback for the call from
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* pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
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* tuple contains a proper LAN_NODE_ID of length 6, and copy the data
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* to struct net_device->dev_addr[i].
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*/
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static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
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void *priv)
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{
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struct net_device *dev = priv;
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int i;
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if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
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return -EINVAL;
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if (tuple->TupleDataLen < ETH_ALEN + 2) {
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dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
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"LAN_NODE_ID\n");
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return -EINVAL;
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}
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if (tuple->TupleData[1] != ETH_ALEN) {
|
||||
dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
for (i = 0; i < 6; i++)
|
||||
dev->dev_addr[i] = tuple->TupleData[i+2];
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
|
||||
* @p_dev: the struct pcmcia_device for which we want the address.
|
||||
* @dev: a properly prepared struct net_device to store the info to.
|
||||
*
|
||||
* pcmcia_get_mac_from_cis() reads out the hardware MAC address from
|
||||
* CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
|
||||
* must be set up properly by the driver (see examples!).
|
||||
*/
|
||||
int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
|
||||
{
|
||||
return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
|
||||
}
|
||||
EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
|
||||
|
||||
@ -923,232 +923,3 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev)
|
||||
pcmcia_release_window(p_dev, p_dev->win);
|
||||
}
|
||||
EXPORT_SYMBOL(pcmcia_disable_device);
|
||||
|
||||
|
||||
struct pcmcia_cfg_mem {
|
||||
struct pcmcia_device *p_dev;
|
||||
void *priv_data;
|
||||
int (*conf_check) (struct pcmcia_device *p_dev,
|
||||
cistpl_cftable_entry_t *cfg,
|
||||
cistpl_cftable_entry_t *dflt,
|
||||
unsigned int vcc,
|
||||
void *priv_data);
|
||||
cisparse_t parse;
|
||||
cistpl_cftable_entry_t dflt;
|
||||
};
|
||||
|
||||
/**
|
||||
* pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
|
||||
*
|
||||
* pcmcia_do_loop_config() is the internal callback for the call from
|
||||
* pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
|
||||
* by a struct pcmcia_cfg_mem.
|
||||
*/
|
||||
static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
|
||||
{
|
||||
cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
|
||||
struct pcmcia_cfg_mem *cfg_mem = priv;
|
||||
|
||||
/* default values */
|
||||
cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
|
||||
if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
|
||||
cfg_mem->dflt = *cfg;
|
||||
|
||||
return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
|
||||
cfg_mem->p_dev->socket->socket.Vcc,
|
||||
cfg_mem->priv_data);
|
||||
}
|
||||
|
||||
/**
|
||||
* pcmcia_loop_config() - loop over configuration options
|
||||
* @p_dev: the struct pcmcia_device which we need to loop for.
|
||||
* @conf_check: function to call for each configuration option.
|
||||
* It gets passed the struct pcmcia_device, the CIS data
|
||||
* describing the configuration option, and private data
|
||||
* being passed to pcmcia_loop_config()
|
||||
* @priv_data: private data to be passed to the conf_check function.
|
||||
*
|
||||
* pcmcia_loop_config() loops over all configuration options, and calls
|
||||
* the driver-specific conf_check() for each one, checking whether
|
||||
* it is a valid one. Returns 0 on success or errorcode otherwise.
|
||||
*/
|
||||
int pcmcia_loop_config(struct pcmcia_device *p_dev,
|
||||
int (*conf_check) (struct pcmcia_device *p_dev,
|
||||
cistpl_cftable_entry_t *cfg,
|
||||
cistpl_cftable_entry_t *dflt,
|
||||
unsigned int vcc,
|
||||
void *priv_data),
|
||||
void *priv_data)
|
||||
{
|
||||
struct pcmcia_cfg_mem *cfg_mem;
|
||||
int ret;
|
||||
|
||||
cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
|
||||
if (cfg_mem == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
cfg_mem->p_dev = p_dev;
|
||||
cfg_mem->conf_check = conf_check;
|
||||
cfg_mem->priv_data = priv_data;
|
||||
|
||||
ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
|
||||
CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
|
||||
cfg_mem, pcmcia_do_loop_config);
|
||||
|
||||
kfree(cfg_mem);
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL(pcmcia_loop_config);
|
||||
|
||||
|
||||
struct pcmcia_loop_mem {
|
||||
struct pcmcia_device *p_dev;
|
||||
void *priv_data;
|
||||
int (*loop_tuple) (struct pcmcia_device *p_dev,
|
||||
tuple_t *tuple,
|
||||
void *priv_data);
|
||||
};
|
||||
|
||||
/**
|
||||
* pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
|
||||
*
|
||||
* pcmcia_do_loop_tuple() is the internal callback for the call from
|
||||
* pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
|
||||
* by a struct pcmcia_cfg_mem.
|
||||
*/
|
||||
static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
|
||||
{
|
||||
struct pcmcia_loop_mem *loop = priv;
|
||||
|
||||
return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
|
||||
};
|
||||
|
||||
/**
|
||||
* pcmcia_loop_tuple() - loop over tuples in the CIS
|
||||
* @p_dev: the struct pcmcia_device which we need to loop for.
|
||||
* @code: which CIS code shall we look for?
|
||||
* @priv_data: private data to be passed to the loop_tuple function.
|
||||
* @loop_tuple: function to call for each CIS entry of type @function. IT
|
||||
* gets passed the raw tuple and @priv_data.
|
||||
*
|
||||
* pcmcia_loop_tuple() loops over all CIS entries of type @function, and
|
||||
* calls the @loop_tuple function for each entry. If the call to @loop_tuple
|
||||
* returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
|
||||
*/
|
||||
int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
|
||||
int (*loop_tuple) (struct pcmcia_device *p_dev,
|
||||
tuple_t *tuple,
|
||||
void *priv_data),
|
||||
void *priv_data)
|
||||
{
|
||||
struct pcmcia_loop_mem loop = {
|
||||
.p_dev = p_dev,
|
||||
.loop_tuple = loop_tuple,
|
||||
.priv_data = priv_data};
|
||||
|
||||
return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
|
||||
&loop, pcmcia_do_loop_tuple);
|
||||
}
|
||||
EXPORT_SYMBOL(pcmcia_loop_tuple);
|
||||
|
||||
|
||||
struct pcmcia_loop_get {
|
||||
size_t len;
|
||||
cisdata_t **buf;
|
||||
};
|
||||
|
||||
/**
|
||||
* pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
|
||||
*
|
||||
* pcmcia_do_get_tuple() is the internal callback for the call from
|
||||
* pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
|
||||
* the first tuple, return 0 unconditionally. Create a memory buffer large
|
||||
* enough to hold the content of the tuple, and fill it with the tuple data.
|
||||
* The caller is responsible to free the buffer.
|
||||
*/
|
||||
static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
|
||||
void *priv)
|
||||
{
|
||||
struct pcmcia_loop_get *get = priv;
|
||||
|
||||
*get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
|
||||
if (*get->buf) {
|
||||
get->len = tuple->TupleDataLen;
|
||||
memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
|
||||
} else
|
||||
dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pcmcia_get_tuple() - get first tuple from CIS
|
||||
* @p_dev: the struct pcmcia_device which we need to loop for.
|
||||
* @code: which CIS code shall we look for?
|
||||
* @buf: pointer to store the buffer to.
|
||||
*
|
||||
* pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
|
||||
* It returns the buffer length (or zero). The caller is responsible to free
|
||||
* the buffer passed in @buf.
|
||||
*/
|
||||
size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
|
||||
unsigned char **buf)
|
||||
{
|
||||
struct pcmcia_loop_get get = {
|
||||
.len = 0,
|
||||
.buf = buf,
|
||||
};
|
||||
|
||||
*get.buf = NULL;
|
||||
pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
|
||||
|
||||
return get.len;
|
||||
}
|
||||
EXPORT_SYMBOL(pcmcia_get_tuple);
|
||||
|
||||
|
||||
/**
|
||||
* pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
|
||||
*
|
||||
* pcmcia_do_get_mac() is the internal callback for the call from
|
||||
* pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
|
||||
* tuple contains a proper LAN_NODE_ID of length 6, and copy the data
|
||||
* to struct net_device->dev_addr[i].
|
||||
*/
|
||||
static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
|
||||
void *priv)
|
||||
{
|
||||
struct net_device *dev = priv;
|
||||
int i;
|
||||
|
||||
if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
|
||||
return -EINVAL;
|
||||
if (tuple->TupleDataLen < ETH_ALEN + 2) {
|
||||
dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
|
||||
"LAN_NODE_ID\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (tuple->TupleData[1] != ETH_ALEN) {
|
||||
dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
for (i = 0; i < 6; i++)
|
||||
dev->dev_addr[i] = tuple->TupleData[i+2];
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
|
||||
* @p_dev: the struct pcmcia_device for which we want the address.
|
||||
* @dev: a properly prepared struct net_device to store the info to.
|
||||
*
|
||||
* pcmcia_get_mac_from_cis() reads out the hardware MAC address from
|
||||
* CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
|
||||
* must be set up properly by the driver (see examples!).
|
||||
*/
|
||||
int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
|
||||
{
|
||||
return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
|
||||
}
|
||||
EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user