drivers/telephony/ixj_pcmcia.c

   1 #include "ixj-ver.h"
   2
   3 #include <linux/module.h>
   4
   5 #include <linux/init.h>
   6 #include <linux/sched.h>
   7 #include <linux/kernel.h>       /* printk() */
   8 #include <linux/fs.h>           /* everything... */
   9 #include <linux/errno.h>        /* error codes */
  10 #include <linux/slab.h>
  11
  12 #include <pcmcia/cs_types.h>
  13 #include <pcmcia/cs.h>
  14 #include <pcmcia/cistpl.h>
  15 #include <pcmcia/ds.h>
  16
  17 #include "ixj.h"
  18
  19 /*
  20  *      PCMCIA service support for Quicknet cards
  21  */
  22
  23 #ifdef PCMCIA_DEBUG
  24 static int pc_debug = PCMCIA_DEBUG;
  25 module_param(pc_debug, int, 0644);
  26 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
  27 #else
  28 #define DEBUG(n, args...)
  29 #endif
  30
  31 typedef struct ixj_info_t {
  32         int ndev;
  33         dev_node_t node;
  34         struct ixj *port;
  35 } ixj_info_t;
  36
  37 static void ixj_detach(struct pcmcia_device *p_dev);
  38 static int ixj_config(struct pcmcia_device * link);
  39 static void ixj_cs_release(struct pcmcia_device * link);
  40
  41 static int ixj_probe(struct pcmcia_device *p_dev)
  42 {
  43         DEBUG(0, "ixj_attach()\n");
  44         /* Create new ixj device */
  45         p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
  46         p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
  47         p_dev->io.IOAddrLines = 3;
  48         p_dev->conf.IntType = INT_MEMORY_AND_IO;
  49         p_dev->priv = kmalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
  50         if (!p_dev->priv) {
  51                 return -ENOMEM;
  52         }
  53         memset(p_dev->priv, 0, sizeof(struct ixj_info_t));
  54
  55         p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
  56         return ixj_config(p_dev);
  57 }
  58
  59 static void ixj_detach(struct pcmcia_device *link)
  60 {
  61         DEBUG(0, "ixj_detach(0x%p)\n", link);
  62
  63         link->state &= ~DEV_RELEASE_PENDING;
  64         if (link->state & DEV_CONFIG)
  65                 ixj_cs_release(link);
  66
  67         kfree(link->priv);
  68 }
  69
  70 #define CS_CHECK(fn, ret) \
  71 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
  72
  73 static void ixj_get_serial(struct pcmcia_device * link, IXJ * j)
  74 {
  75         tuple_t tuple;
  76         u_short buf[128];
  77         char *str;
  78         int last_ret, last_fn, i, place;
  79         DEBUG(0, "ixj_get_serial(0x%p)\n", link);
  80         tuple.TupleData = (cisdata_t *) buf;
  81         tuple.TupleOffset = 0;
  82         tuple.TupleDataMax = 80;
  83         tuple.Attributes = 0;
  84         tuple.DesiredTuple = CISTPL_VERS_1;
  85         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
  86         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
  87         str = (char *) buf;
  88         printk("PCMCIA Version %d.%d\n", str[0], str[1]);
  89         str += 2;
  90         printk("%s", str);
  91         str = str + strlen(str) + 1;
  92         printk(" %s", str);
  93         str = str + strlen(str) + 1;
  94         place = 1;
  95         for (i = strlen(str) - 1; i >= 0; i--) {
  96                 switch (str[i]) {
  97                 case '0':
  98                 case '1':
  99                 case '2':
 100                 case '3':
 101                 case '4':
 102                 case '5':
 103                 case '6':
 104                 case '7':
 105                 case '8':
 106                 case '9':
 107                         j->serial += (str[i] - 48) * place;
 108                         break;
 109                 case 'A':
 110                 case 'B':
 111                 case 'C':
 112                 case 'D':
 113                 case 'E':
 114                 case 'F':
 115                         j->serial += (str[i] - 55) * place;
 116                         break;
 117                 case 'a':
 118                 case 'b':
 119                 case 'c':
 120                 case 'd':
 121                 case 'e':
 122                 case 'f':
 123                         j->serial += (str[i] - 87) * place;
 124                         break;
 125                 }
 126                 place = place * 0x10;
 127         }
 128         str = str + strlen(str) + 1;
 129         printk(" version %s\n", str);
 130       cs_failed:
 131         return;
 132 }
 133
 134 static int ixj_config(struct pcmcia_device * link)
 135 {
 136         IXJ *j;
 137         ixj_info_t *info;
 138         tuple_t tuple;
 139         u_short buf[128];
 140         cisparse_t parse;
 141         cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
 142         cistpl_cftable_entry_t dflt =
 143         {
 144                 0
 145         };
 146         int last_ret, last_fn;
 147         info = link->priv;
 148         DEBUG(0, "ixj_config(0x%p)\n", link);
 149         tuple.TupleData = (cisdata_t *) buf;
 150         tuple.TupleOffset = 0;
 151         tuple.TupleDataMax = 255;
 152         tuple.Attributes = 0;
 153         tuple.DesiredTuple = CISTPL_CONFIG;
 154         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 155         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
 156         CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
 157         link->conf.ConfigBase = parse.config.base;
 158         link->conf.Present = parse.config.rmask[0];
 159         link->state |= DEV_CONFIG;
 160         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 161         tuple.Attributes = 0;
 162         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 163         while (1) {
 164                 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
 165                                 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
 166                         goto next_entry;
 167                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 168                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
 169                         link->conf.ConfigIndex = cfg->index;
 170                         link->io.BasePort1 = io->win[0].base;
 171                         link->io.NumPorts1 = io->win[0].len;
 172                         if (io->nwin == 2) {
 173                                 link->io.BasePort2 = io->win[1].base;
 174                                 link->io.NumPorts2 = io->win[1].len;
 175                         }
 176                         if (pcmcia_request_io(link, &link->io) != 0)
 177                                 goto next_entry;
 178                         /* If we've got this far, we're done */
 179                         break;
 180                 }
 181               next_entry:
 182                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 183                         dflt = *cfg;
 184                 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
 185         }
 186
 187         CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 188
 189         /*
 190          *      Register the card with the core.
 191          */
 192         j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10);
 193
 194         info->ndev = 1;
 195         info->node.major = PHONE_MAJOR;
 196         link->dev_node = &info->node;
 197         ixj_get_serial(link, j);
 198         link->state &= ~DEV_CONFIG_PENDING;
 199         return 0;
 200       cs_failed:
 201         cs_error(link, last_fn, last_ret);
 202         ixj_cs_release(link);
 203         return -ENODEV;
 204 }
 205
 206 static void ixj_cs_release(struct pcmcia_device *link)
 207 {
 208         ixj_info_t *info = link->priv;
 209         DEBUG(0, "ixj_cs_release(0x%p)\n", link);
 210         info->ndev = 0;
 211         pcmcia_disable_device(link);
 212 }
 213
 214 static struct pcmcia_device_id ixj_ids[] = {
 215         PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
 216         PCMCIA_DEVICE_NULL
 217 };
 218 MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
 219
 220 static struct pcmcia_driver ixj_driver = {
 221         .owner          = THIS_MODULE,
 222         .drv            = {
 223                 .name   = "ixj_cs",
 224         },
 225         .probe          = ixj_probe,
 226         .remove         = ixj_detach,
 227         .id_table       = ixj_ids,
 228 };
 229
 230 static int __init ixj_pcmcia_init(void)
 231 {
 232         return pcmcia_register_driver(&ixj_driver);
 233 }
 234
 235 static void ixj_pcmcia_exit(void)
 236 {
 237         pcmcia_unregister_driver(&ixj_driver);
 238 }
 239
 240 module_init(ixj_pcmcia_init);
 241 module_exit(ixj_pcmcia_exit);
 242
 243 MODULE_LICENSE("GPL");