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 = kzalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
  49         if (!p_dev->priv) {
  50                 return -ENOMEM;
  51         }
  52
  53         return ixj_config(p_dev);
  54 }
  55
  56 static void ixj_detach(struct pcmcia_device *link)
  57 {
  58         DEBUG(0, "ixj_detach(0x%p)\n", link);
  59
  60         ixj_cs_release(link);
  61
  62         kfree(link->priv);
  63 }
  64
  65 #define CS_CHECK(fn, ret) \
  66 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
  67
  68 static void ixj_get_serial(struct pcmcia_device * link, IXJ * j)
  69 {
  70         char *str;
  71         int i, place;
  72         DEBUG(0, "ixj_get_serial(0x%p)\n", link);
  73
  74         str = link->prod_id[0];
  75         if (!str)
  76                 goto cs_failed;
  77         printk("%s", str);
  78         str = link->prod_id[1];
  79         if (!str)
  80                 goto cs_failed;
  81         printk(" %s", str);
  82         str = link->prod_id[2];
  83         if (!str)
  84                 goto cs_failed;
  85         place = 1;
  86         for (i = strlen(str) - 1; i >= 0; i--) {
  87                 switch (str[i]) {
  88                 case '0':
  89                 case '1':
  90                 case '2':
  91                 case '3':
  92                 case '4':
  93                 case '5':
  94                 case '6':
  95                 case '7':
  96                 case '8':
  97                 case '9':
  98                         j->serial += (str[i] - 48) * place;
  99                         break;
 100                 case 'A':
 101                 case 'B':
 102                 case 'C':
 103                 case 'D':
 104                 case 'E':
 105                 case 'F':
 106                         j->serial += (str[i] - 55) * place;
 107                         break;
 108                 case 'a':
 109                 case 'b':
 110                 case 'c':
 111                 case 'd':
 112                 case 'e':
 113                 case 'f':
 114                         j->serial += (str[i] - 87) * place;
 115                         break;
 116                 }
 117                 place = place * 0x10;
 118         }
 119         str = link->prod_id[3];
 120         if (!str)
 121                 goto cs_failed;
 122         printk(" version %s\n", str);
 123       cs_failed:
 124         return;
 125 }
 126
 127 static int ixj_config_check(struct pcmcia_device *p_dev,
 128                             cistpl_cftable_entry_t *cfg,
 129                             cistpl_cftable_entry_t *dflt,
 130                             unsigned int vcc,
 131                             void *priv_data)
 132 {
 133         if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
 134                 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
 135                 p_dev->io.BasePort1 = io->win[0].base;
 136                 p_dev->io.NumPorts1 = io->win[0].len;
 137                 if (io->nwin == 2) {
 138                         p_dev->io.BasePort2 = io->win[1].base;
 139                         p_dev->io.NumPorts2 = io->win[1].len;
 140                 }
 141                 if (!pcmcia_request_io(p_dev, &p_dev->io))
 142                         return 0;
 143         }
 144         return -ENODEV;
 145 }
 146
 147 static int ixj_config(struct pcmcia_device * link)
 148 {
 149         IXJ *j;
 150         ixj_info_t *info;
 151         cistpl_cftable_entry_t dflt = { 0 };
 152
 153         info = link->priv;
 154         DEBUG(0, "ixj_config(0x%p)\n", link);
 155
 156         if (pcmcia_loop_config(link, ixj_config_check, &dflt))
 157                 goto cs_failed;
 158
 159         if (pcmcia_request_configuration(link, &link->conf))
 160                 goto cs_failed;
 161
 162         /*
 163          *      Register the card with the core.
 164          */
 165         j = ixj_pcmcia_probe(link->io.BasePort1, link->io.BasePort1 + 0x10);
 166
 167         info->ndev = 1;
 168         info->node.major = PHONE_MAJOR;
 169         link->dev_node = &info->node;
 170         ixj_get_serial(link, j);
 171         return 0;
 172
 173       cs_failed:
 174         ixj_cs_release(link);
 175         return -ENODEV;
 176 }
 177
 178 static void ixj_cs_release(struct pcmcia_device *link)
 179 {
 180         ixj_info_t *info = link->priv;
 181         DEBUG(0, "ixj_cs_release(0x%p)\n", link);
 182         info->ndev = 0;
 183         pcmcia_disable_device(link);
 184 }
 185
 186 static struct pcmcia_device_id ixj_ids[] = {
 187         PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
 188         PCMCIA_DEVICE_NULL
 189 };
 190 MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
 191
 192 static struct pcmcia_driver ixj_driver = {
 193         .owner          = THIS_MODULE,
 194         .drv            = {
 195                 .name   = "ixj_cs",
 196         },
 197         .probe          = ixj_probe,
 198         .remove         = ixj_detach,
 199         .id_table       = ixj_ids,
 200 };
 201
 202 static int __init ixj_pcmcia_init(void)
 203 {
 204         return pcmcia_register_driver(&ixj_driver);
 205 }
 206
 207 static void ixj_pcmcia_exit(void)
 208 {
 209         pcmcia_unregister_driver(&ixj_driver);
 210 }
 211
 212 module_init(ixj_pcmcia_init);
 213 module_exit(ixj_pcmcia_exit);
 214
 215 MODULE_LICENSE("GPL");