release/src-rt-6.x.4708/linux/linux-2.6.36/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.h>
  12 #include <pcmcia/cistpl.h>
  13 #include <pcmcia/ds.h>
  14
  15 #include "ixj.h"
  16
  17 /*
  18  *      PCMCIA service support for Quicknet cards
  19  */
  20
  21
  22 typedef struct ixj_info_t {
  23         int ndev;
  24         struct ixj *port;
  25 } ixj_info_t;
  26
  27 static void ixj_detach(struct pcmcia_device *p_dev);
  28 static int ixj_config(struct pcmcia_device * link);
  29 static void ixj_cs_release(struct pcmcia_device * link);
  30
  31 static int ixj_probe(struct pcmcia_device *p_dev)
  32 {
  33         dev_dbg(&p_dev->dev, "ixj_attach()\n");
  34         /* Create new ixj device */
  35         p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
  36         p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
  37         p_dev->conf.IntType = INT_MEMORY_AND_IO;
  38         p_dev->priv = kzalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
  39         if (!p_dev->priv) {
  40                 return -ENOMEM;
  41         }
  42
  43         return ixj_config(p_dev);
  44 }
  45
  46 static void ixj_detach(struct pcmcia_device *link)
  47 {
  48         dev_dbg(&link->dev, "ixj_detach\n");
  49
  50         ixj_cs_release(link);
  51
  52         kfree(link->priv);
  53 }
  54
  55 static void ixj_get_serial(struct pcmcia_device * link, IXJ * j)
  56 {
  57         char *str;
  58         int i, place;
  59         dev_dbg(&link->dev, "ixj_get_serial\n");
  60
  61         str = link->prod_id[0];
  62         if (!str)
  63                 goto failed;
  64         printk("%s", str);
  65         str = link->prod_id[1];
  66         if (!str)
  67                 goto failed;
  68         printk(" %s", str);
  69         str = link->prod_id[2];
  70         if (!str)
  71                 goto failed;
  72         place = 1;
  73         for (i = strlen(str) - 1; i >= 0; i--) {
  74                 switch (str[i]) {
  75                 case '0':
  76                 case '1':
  77                 case '2':
  78                 case '3':
  79                 case '4':
  80                 case '5':
  81                 case '6':
  82                 case '7':
  83                 case '8':
  84                 case '9':
  85                         j->serial += (str[i] - 48) * place;
  86                         break;
  87                 case 'A':
  88                 case 'B':
  89                 case 'C':
  90                 case 'D':
  91                 case 'E':
  92                 case 'F':
  93                         j->serial += (str[i] - 55) * place;
  94                         break;
  95                 case 'a':
  96                 case 'b':
  97                 case 'c':
  98                 case 'd':
  99                 case 'e':
 100                 case 'f':
 101                         j->serial += (str[i] - 87) * place;
 102                         break;
 103                 }
 104                 place = place * 0x10;
 105         }
 106         str = link->prod_id[3];
 107         if (!str)
 108                 goto failed;
 109         printk(" version %s\n", str);
 110 failed:
 111         return;
 112 }
 113
 114 static int ixj_config_check(struct pcmcia_device *p_dev,
 115                             cistpl_cftable_entry_t *cfg,
 116                             cistpl_cftable_entry_t *dflt,
 117                             unsigned int vcc,
 118                             void *priv_data)
 119 {
 120         if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
 121                 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
 122                 p_dev->resource[0]->start = io->win[0].base;
 123                 p_dev->resource[0]->end = io->win[0].len;
 124                 p_dev->io_lines = 3;
 125                 if (io->nwin == 2) {
 126                         p_dev->resource[1]->start = io->win[1].base;
 127                         p_dev->resource[1]->end = io->win[1].len;
 128                 }
 129                 if (!pcmcia_request_io(p_dev))
 130                         return 0;
 131         }
 132         return -ENODEV;
 133 }
 134
 135 static int ixj_config(struct pcmcia_device * link)
 136 {
 137         IXJ *j;
 138         ixj_info_t *info;
 139         cistpl_cftable_entry_t dflt = { 0 };
 140
 141         info = link->priv;
 142         dev_dbg(&link->dev, "ixj_config\n");
 143
 144         if (pcmcia_loop_config(link, ixj_config_check, &dflt))
 145                 goto failed;
 146
 147         if (pcmcia_request_configuration(link, &link->conf))
 148                 goto failed;
 149
 150         /*
 151          *      Register the card with the core.
 152          */
 153         j = ixj_pcmcia_probe(link->resource[0]->start,
 154                              link->resource[0]->start + 0x10);
 155
 156         info->ndev = 1;
 157         ixj_get_serial(link, j);
 158         return 0;
 159
 160 failed:
 161         ixj_cs_release(link);
 162         return -ENODEV;
 163 }
 164
 165 static void ixj_cs_release(struct pcmcia_device *link)
 166 {
 167         ixj_info_t *info = link->priv;
 168         dev_dbg(&link->dev, "ixj_cs_release\n");
 169         info->ndev = 0;
 170         pcmcia_disable_device(link);
 171 }
 172
 173 static struct pcmcia_device_id ixj_ids[] = {
 174         PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
 175         PCMCIA_DEVICE_NULL
 176 };
 177 MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
 178
 179 static struct pcmcia_driver ixj_driver = {
 180         .owner          = THIS_MODULE,
 181         .drv            = {
 182                 .name   = "ixj_cs",
 183         },
 184         .probe          = ixj_probe,
 185         .remove         = ixj_detach,
 186         .id_table       = ixj_ids,
 187 };
 188
 189 static int __init ixj_pcmcia_init(void)
 190 {
 191         return pcmcia_register_driver(&ixj_driver);
 192 }
 193
 194 static void ixj_pcmcia_exit(void)
 195 {
 196         pcmcia_unregister_driver(&ixj_driver);
 197 }
 198
 199 module_init(ixj_pcmcia_init);
 200 module_exit(ixj_pcmcia_exit);
 201
 202 MODULE_LICENSE("GPL");