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         return ixj_config(p_dev);
  56 }
  57
  58 static void ixj_detach(struct pcmcia_device *link)
  59 {
  60         DEBUG(0, "ixj_detach(0x%p)\n", link);
  61
  62         ixj_cs_release(link);
  63
  64         kfree(link->priv);
  65 }
  66
  67 #define CS_CHECK(fn, ret) \
  68 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
  69
  70 static void ixj_get_serial(struct pcmcia_device * link, IXJ * j)
  71 {
  72         char *str;
  73         int i, place;
  74         DEBUG(0, "ixj_get_serial(0x%p)\n", link);
  75
  76         str = link->prod_id[0];
  77         if (!str)
  78                 goto cs_failed;
  79         printk("%s", str);
  80         str = link->prod_id[1];
  81         if (!str)
  82                 goto cs_failed;
  83         printk(" %s", str);
  84         str = link->prod_id[2];
  85         if (!str)
  86                 goto cs_failed;
  87         place = 1;
  88         for (i = strlen(str) - 1; i >= 0; i--) {
  89                 switch (str[i]) {
  90                 case '0':
  91                 case '1':
  92                 case '2':
  93                 case '3':
  94                 case '4':
  95                 case '5':
  96                 case '6':
  97                 case '7':
  98                 case '8':
  99                 case '9':
 100                         j->serial += (str[i] - 48) * place;
 101                         break;
 102                 case 'A':
 103                 case 'B':
 104                 case 'C':
 105                 case 'D':
 106                 case 'E':
 107                 case 'F':
 108                         j->serial += (str[i] - 55) * place;
 109                         break;
 110                 case 'a':
 111                 case 'b':
 112                 case 'c':
 113                 case 'd':
 114                 case 'e':
 115                 case 'f':
 116                         j->serial += (str[i] - 87) * place;
 117                         break;
 118                 }
 119                 place = place * 0x10;
 120         }
 121         str = link->prod_id[3];
 122         if (!str)
 123                 goto cs_failed;
 124         printk(" version %s\n", str);
 125       cs_failed:
 126         return;
 127 }
 128
 129 static int ixj_config(struct pcmcia_device * link)
 130 {
 131         IXJ *j;
 132         ixj_info_t *info;
 133         tuple_t tuple;
 134         u_short buf[128];
 135         cisparse_t parse;
 136         cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
 137         cistpl_cftable_entry_t dflt =
 138         {
 139                 0
 140         };
 141         int last_ret, last_fn;
 142         info = link->priv;
 143         DEBUG(0, "ixj_config(0x%p)\n", link);
 144         tuple.TupleData = (cisdata_t *) buf;
 145         tuple.TupleOffset = 0;
 146         tuple.TupleDataMax = 255;
 147         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 148         tuple.Attributes = 0;
 149         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 150         while (1) {
 151                 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
 152                                 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
 153                         goto next_entry;
 154                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 155                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
 156                         link->conf.ConfigIndex = cfg->index;
 157                         link->io.BasePort1 = io->win[0].base;
 158                         link->io.NumPorts1 = io->win[0].len;
 159                         if (io->nwin == 2) {
 160                                 link->io.BasePort2 = io->win[1].base;
 161                                 link->io.NumPorts2 = io->win[1].len;
 162                         }
 163                         if (pcmcia_request_io(link, &link->io) != 0)
 164                                 goto next_entry;
 165                         /* If we've got this far, we're done */
 166                         break;
 167                 }
 168               next_entry:
 169                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 170                         dflt = *cfg;
 171                 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
 172         }
 173
 174         CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 175
 176         /*
 177          *      Register the card with the core.
 178          */
 179         j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10);
 180
 181         info->ndev = 1;
 182         info->node.major = PHONE_MAJOR;
 183         link->dev_node = &info->node;
 184         ixj_get_serial(link, j);
 185         return 0;
 186       cs_failed:
 187         cs_error(link, last_fn, last_ret);
 188         ixj_cs_release(link);
 189         return -ENODEV;
 190 }
 191
 192 static void ixj_cs_release(struct pcmcia_device *link)
 193 {
 194         ixj_info_t *info = link->priv;
 195         DEBUG(0, "ixj_cs_release(0x%p)\n", link);
 196         info->ndev = 0;
 197         pcmcia_disable_device(link);
 198 }
 199
 200 static struct pcmcia_device_id ixj_ids[] = {
 201         PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
 202         PCMCIA_DEVICE_NULL
 203 };
 204 MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
 205
 206 static struct pcmcia_driver ixj_driver = {
 207         .owner          = THIS_MODULE,
 208         .drv            = {
 209                 .name   = "ixj_cs",
 210         },
 211         .probe          = ixj_probe,
 212         .remove         = ixj_detach,
 213         .id_table       = ixj_ids,
 214 };
 215
 216 static int __init ixj_pcmcia_init(void)
 217 {
 218         return pcmcia_register_driver(&ixj_driver);
 219 }
 220
 221 static void ixj_pcmcia_exit(void)
 222 {
 223         pcmcia_unregister_driver(&ixj_driver);
 224 }
 225
 226 module_init(ixj_pcmcia_init);
 227 module_exit(ixj_pcmcia_exit);
 228
 229 MODULE_LICENSE("GPL");