132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/*
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* Copyright 2009 Hauke Mehrtens <hauke@hauke-m.de>
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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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* Compatibility file for Linux wireless for kernels 2.6.33.
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*/
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#include <linux/compat.h>
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#if defined(CONFIG_PCCARD) || defined(CONFIG_PCCARD_MODULE)
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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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EXPORT_SYMBOL_GPL(pccard_loop_tuple);
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/* Source: drivers/pcmcia/cistpl.c */
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#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
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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_GPL(pcmcia_loop_tuple);
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/* Source: drivers/pcmcia/pcmcia_resource.c */
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#endif /* CONFIG_PCMCIA */
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#endif /* CONFIG_PCCARD */
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