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