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
  23 typedef struct ixj_info_t {
  24         int ndev;
  25         dev_node_t node;
  26         struct ixj *port;
  27 } ixj_info_t;
  28
  29 static void ixj_detach(struct pcmcia_device *p_dev);
  30 static int ixj_config(struct pcmcia_device * link);
  31 static void ixj_cs_release(struct pcmcia_device * link);
  32
  33 static int ixj_probe(struct pcmcia_device *p_dev)
  34 {
  35         dev_dbg(&p_dev->dev, "ixj_attach()\n");
  36         /* Create new ixj device */
  37         p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
  38         p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
  39         p_dev->io.IOAddrLines = 3;
  40         p_dev->conf.IntType = INT_MEMORY_AND_IO;
  41         p_dev->priv = kzalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
  42         if (!p_dev->priv) {
  43                 return -ENOMEM;
  44         }
  45
  46         return ixj_config(p_dev);
  47 }
  48
  49 static void ixj_detach(struct pcmcia_device *link)
  50 {
  51         dev_dbg(&link->dev, "ixj_detach\n");
  52
  53         ixj_cs_release(link);
  54
  55         kfree(link->priv);
  56 }
  57
  58 static void ixj_get_serial(struct pcmcia_device * link, IXJ * j)
  59 {
  60         char *str;
  61         int i, place;
  62         dev_dbg(&link->dev, "ixj_get_serial\n");
  63
  64         str = link->prod_id[0];
  65         if (!str)
  66                 goto failed;
  67         printk("%s", str);
  68         str = link->prod_id[1];
  69         if (!str)
  70                 goto failed;
  71         printk(" %s", str);
  72         str = link->prod_id[2];
  73         if (!str)
  74                 goto failed;
  75         place = 1;
  76         for (i = strlen(str) - 1; i >= 0; i--) {
  77                 switch (str[i]) {
  78                 case '0':
  79                 case '1':
  80                 case '2':
  81                 case '3':
  82                 case '4':
  83                 case '5':
  84                 case '6':
  85                 case '7':
  86                 case '8':
  87                 case '9':
  88                         j->serial += (str[i] - 48) * place;
  89                         break;
  90                 case 'A':
  91                 case 'B':
  92                 case 'C':
  93                 case 'D':
  94                 case 'E':
  95                 case 'F':
  96                         j->serial += (str[i] - 55) * place;
  97                         break;
  98                 case 'a':
  99                 case 'b':
 100                 case 'c':
 101                 case 'd':
 102                 case 'e':
 103                 case 'f':
 104                         j->serial += (str[i] - 87) * place;
 105                         break;
 106                 }
 107                 place = place * 0x10;
 108         }
 109         str = link->prod_id[3];
 110         if (!str)
 111                 goto failed;
 112         printk(" version %s\n", str);
 113 failed:
 114         return;
 115 }
 116
 117 static int ixj_config_check(struct pcmcia_device *p_dev,
 118                             cistpl_cftable_entry_t *cfg,
 119                             cistpl_cftable_entry_t *dflt,
 120                             unsigned int vcc,
 121                             void *priv_data)
 122 {
 123         if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
 124                 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
 125                 p_dev->io.BasePort1 = io->win[0].base;
 126                 p_dev->io.NumPorts1 = io->win[0].len;
 127                 if (io->nwin == 2) {
 128                         p_dev->io.BasePort2 = io->win[1].base;
 129                         p_dev->io.NumPorts2 = io->win[1].len;
 130                 }
 131                 if (!pcmcia_request_io(p_dev, &p_dev->io))
 132                         return 0;
 133         }
 134         return -ENODEV;
 135 }
 136
 137 static int ixj_config(struct pcmcia_device * link)
 138 {
 139         IXJ *j;
 140         ixj_info_t *info;
 141         cistpl_cftable_entry_t dflt = { 0 };
 142
 143         info = link->priv;
 144         dev_dbg(&link->dev, "ixj_config\n");
 145
 146         if (pcmcia_loop_config(link, ixj_config_check, &dflt))
 147                 goto failed;
 148
 149         if (pcmcia_request_configuration(link, &link->conf))
 150                 goto failed;
 151
 152         /*
 153          *      Register the card with the core.
 154          */
 155         j = ixj_pcmcia_probe(link->io.BasePort1, link->io.BasePort1 + 0x10);
 156
 157         info->ndev = 1;
 158         info->node.major = PHONE_MAJOR;
 159         link->dev_node = &info->node;
 160         ixj_get_serial(link, j);
 161         return 0;
 162
 163 failed:
 164         ixj_cs_release(link);
 165         return -ENODEV;
 166 }
 167
 168 static void ixj_cs_release(struct pcmcia_device *link)
 169 {
 170         ixj_info_t *info = link->priv;
 171         dev_dbg(&link->dev, "ixj_cs_release\n");
 172         info->ndev = 0;
 173         pcmcia_disable_device(link);
 174 }
 175
 176 static struct pcmcia_device_id ixj_ids[] = {
 177         PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
 178         PCMCIA_DEVICE_NULL
 179 };
 180 MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
 181
 182 static struct pcmcia_driver ixj_driver = {
 183         .owner          = THIS_MODULE,
 184         .drv            = {
 185                 .name   = "ixj_cs",
 186         },
 187         .probe          = ixj_probe,
 188         .remove         = ixj_detach,
 189         .id_table       = ixj_ids,
 190 };
 191
 192 static int __init ixj_pcmcia_init(void)
 193 {
 194         return pcmcia_register_driver(&ixj_driver);
 195 }
 196
 197 static void ixj_pcmcia_exit(void)
 198 {
 199         pcmcia_unregister_driver(&ixj_driver);
 200 }
 201
 202 module_init(ixj_pcmcia_init);
 203 module_exit(ixj_pcmcia_exit);
 204
 205 MODULE_LICENSE("GPL");