324 строки
7.9 KiB
C
324 строки
7.9 KiB
C
#include "ixj-ver.h"
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/kernel.h> /* printk() */
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#include <linux/fs.h> /* everything... */
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#include <linux/errno.h> /* error codes */
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#include <linux/slab.h>
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/ds.h>
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#include "ixj.h"
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/*
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* PCMCIA service support for Quicknet cards
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*/
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#ifdef PCMCIA_DEBUG
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static int pc_debug = PCMCIA_DEBUG;
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module_param(pc_debug, int, 0644);
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#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
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#else
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#define DEBUG(n, args...)
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#endif
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typedef struct ixj_info_t {
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int ndev;
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dev_node_t node;
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struct ixj *port;
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} ixj_info_t;
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static dev_link_t *ixj_attach(void);
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static void ixj_detach(dev_link_t *);
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static void ixj_config(dev_link_t * link);
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static void ixj_cs_release(dev_link_t * link);
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static int ixj_event(event_t event, int priority, event_callback_args_t * args);
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static dev_info_t dev_info = "ixj_cs";
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static dev_link_t *dev_list = NULL;
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static dev_link_t *ixj_attach(void)
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{
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client_reg_t client_reg;
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dev_link_t *link;
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int ret;
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DEBUG(0, "ixj_attach()\n");
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/* Create new ixj device */
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link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
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if (!link)
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return NULL;
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memset(link, 0, sizeof(struct dev_link_t));
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link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
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link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
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link->io.IOAddrLines = 3;
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link->conf.Vcc = 50;
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link->conf.IntType = INT_MEMORY_AND_IO;
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link->priv = kmalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
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if (!link->priv) {
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kfree(link);
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return NULL;
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}
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memset(link->priv, 0, sizeof(struct ixj_info_t));
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/* Register with Card Services */
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link->next = dev_list;
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dev_list = link;
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client_reg.dev_info = &dev_info;
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client_reg.Version = 0x0210;
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client_reg.event_callback_args.client_data = link;
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ret = pcmcia_register_client(&link->handle, &client_reg);
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if (ret != CS_SUCCESS) {
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cs_error(link->handle, RegisterClient, ret);
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ixj_detach(link);
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return NULL;
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}
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return link;
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}
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static void ixj_detach(dev_link_t * link)
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{
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dev_link_t **linkp;
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int ret;
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DEBUG(0, "ixj_detach(0x%p)\n", link);
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for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
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if (*linkp == link)
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break;
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if (*linkp == NULL)
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return;
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link->state &= ~DEV_RELEASE_PENDING;
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if (link->state & DEV_CONFIG)
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ixj_cs_release(link);
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if (link->handle) {
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ret = pcmcia_deregister_client(link->handle);
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if (ret != CS_SUCCESS)
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cs_error(link->handle, DeregisterClient, ret);
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}
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/* Unlink device structure, free bits */
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*linkp = link->next;
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kfree(link->priv);
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kfree(link);
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}
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#define CS_CHECK(fn, ret) \
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do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
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static void ixj_get_serial(dev_link_t * link, IXJ * j)
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{
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client_handle_t handle;
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tuple_t tuple;
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u_short buf[128];
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char *str;
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int last_ret, last_fn, i, place;
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handle = link->handle;
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DEBUG(0, "ixj_get_serial(0x%p)\n", link);
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tuple.TupleData = (cisdata_t *) buf;
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tuple.TupleOffset = 0;
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tuple.TupleDataMax = 80;
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tuple.Attributes = 0;
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tuple.DesiredTuple = CISTPL_VERS_1;
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
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CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
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str = (char *) buf;
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printk("PCMCIA Version %d.%d\n", str[0], str[1]);
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str += 2;
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printk("%s", str);
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str = str + strlen(str) + 1;
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printk(" %s", str);
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str = str + strlen(str) + 1;
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place = 1;
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for (i = strlen(str) - 1; i >= 0; i--) {
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switch (str[i]) {
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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j->serial += (str[i] - 48) * place;
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break;
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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case 'E':
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case 'F':
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j->serial += (str[i] - 55) * place;
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break;
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case 'a':
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case 'b':
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case 'c':
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case 'd':
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case 'e':
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case 'f':
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j->serial += (str[i] - 87) * place;
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break;
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}
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place = place * 0x10;
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}
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str = str + strlen(str) + 1;
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printk(" version %s\n", str);
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cs_failed:
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return;
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}
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static void ixj_config(dev_link_t * link)
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{
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IXJ *j;
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client_handle_t handle;
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ixj_info_t *info;
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tuple_t tuple;
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u_short buf[128];
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cisparse_t parse;
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config_info_t conf;
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cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
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cistpl_cftable_entry_t dflt =
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{
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0
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};
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int last_ret, last_fn;
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handle = link->handle;
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info = link->priv;
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DEBUG(0, "ixj_config(0x%p)\n", link);
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tuple.TupleData = (cisdata_t *) buf;
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tuple.TupleOffset = 0;
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tuple.TupleDataMax = 255;
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tuple.Attributes = 0;
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tuple.DesiredTuple = CISTPL_CONFIG;
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
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CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
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CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
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link->conf.ConfigBase = parse.config.base;
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link->conf.Present = parse.config.rmask[0];
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link->state |= DEV_CONFIG;
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CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
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tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
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tuple.Attributes = 0;
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
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while (1) {
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if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
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pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
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goto next_entry;
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if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
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cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
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link->conf.ConfigIndex = cfg->index;
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link->io.BasePort1 = io->win[0].base;
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link->io.NumPorts1 = io->win[0].len;
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if (io->nwin == 2) {
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link->io.BasePort2 = io->win[1].base;
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link->io.NumPorts2 = io->win[1].len;
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}
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if (pcmcia_request_io(link->handle, &link->io) != 0)
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goto next_entry;
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/* If we've got this far, we're done */
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break;
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}
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next_entry:
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if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
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dflt = *cfg;
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CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
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}
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CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
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/*
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* Register the card with the core.
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*/
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j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10);
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info->ndev = 1;
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info->node.major = PHONE_MAJOR;
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link->dev = &info->node;
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ixj_get_serial(link, j);
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link->state &= ~DEV_CONFIG_PENDING;
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return;
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cs_failed:
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cs_error(link->handle, last_fn, last_ret);
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ixj_cs_release(link);
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}
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static void ixj_cs_release(dev_link_t *link)
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{
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ixj_info_t *info = link->priv;
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DEBUG(0, "ixj_cs_release(0x%p)\n", link);
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info->ndev = 0;
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link->dev = NULL;
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pcmcia_release_configuration(link->handle);
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pcmcia_release_io(link->handle, &link->io);
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link->state &= ~DEV_CONFIG;
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}
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static int ixj_event(event_t event, int priority, event_callback_args_t * args)
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{
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dev_link_t *link = args->client_data;
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DEBUG(1, "ixj_event(0x%06x)\n", event);
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switch (event) {
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case CS_EVENT_CARD_REMOVAL:
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link->state &= ~DEV_PRESENT;
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if (link->state & DEV_CONFIG) {
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link->state |= DEV_RELEASE_PENDING;
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ixj_cs_release(link);
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}
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break;
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case CS_EVENT_CARD_INSERTION:
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link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
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ixj_config(link);
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break;
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case CS_EVENT_PM_SUSPEND:
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link->state |= DEV_SUSPEND;
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/* Fall through... */
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case CS_EVENT_RESET_PHYSICAL:
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if (link->state & DEV_CONFIG)
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pcmcia_release_configuration(link->handle);
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break;
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case CS_EVENT_PM_RESUME:
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link->state &= ~DEV_SUSPEND;
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/* Fall through... */
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case CS_EVENT_CARD_RESET:
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if (DEV_OK(link))
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pcmcia_request_configuration(link->handle, &link->conf);
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break;
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}
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return 0;
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}
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static struct pcmcia_device_id ixj_ids[] = {
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PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
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PCMCIA_DEVICE_NULL
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};
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MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
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static struct pcmcia_driver ixj_driver = {
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.owner = THIS_MODULE,
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.drv = {
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.name = "ixj_cs",
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},
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.attach = ixj_attach,
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.event = ixj_event,
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.detach = ixj_detach,
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.id_table = ixj_ids,
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};
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static int __init ixj_pcmcia_init(void)
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{
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return pcmcia_register_driver(&ixj_driver);
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}
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static void ixj_pcmcia_exit(void)
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{
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pcmcia_unregister_driver(&ixj_driver);
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BUG_ON(dev_list != NULL);
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}
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module_init(ixj_pcmcia_init);
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module_exit(ixj_pcmcia_exit);
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MODULE_LICENSE("GPL");
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