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         tuple_t tuple;
  73         u_short buf[128];
  74         char *str;
  75         int last_ret, last_fn, i, place;
  76         DEBUG(0, "ixj_get_serial(0x%p)\n", link);
  77         tuple.TupleData = (cisdata_t *) buf;
  78         tuple.TupleOffset = 0;
  79         tuple.TupleDataMax = 80;
  80         tuple.Attributes = 0;
  81         tuple.DesiredTuple = CISTPL_VERS_1;
  82         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
  83         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
  84         str = (char *) buf;
  85         printk("PCMCIA Version %d.%d\n", str[0], str[1]);
  86         str += 2;
  87         printk("%s", str);
  88         str = str + strlen(str) + 1;
  89         printk(" %s", str);
  90         str = str + strlen(str) + 1;
  91         place = 1;
  92         for (i = strlen(str) - 1; i >= 0; i--) {
  93                 switch (str[i]) {
  94                 case '0':
  95                 case '1':
  96                 case '2':
  97                 case '3':
  98                 case '4':
  99                 case '5':
 100                 case '6':
 101                 case '7':
 102                 case '8':
 103                 case '9':
 104                         j->serial += (str[i] - 48) * place;
 105                         break;
 106                 case 'A':
 107                 case 'B':
 108                 case 'C':
 109                 case 'D':
 110                 case 'E':
 111                 case 'F':
 112                         j->serial += (str[i] - 55) * place;
 113                         break;
 114                 case 'a':
 115                 case 'b':
 116                 case 'c':
 117                 case 'd':
 118                 case 'e':
 119                 case 'f':
 120                         j->serial += (str[i] - 87) * place;
 121                         break;
 122                 }
 123                 place = place * 0x10;
 124         }
 125         str = str + strlen(str) + 1;
 126         printk(" version %s\n", str);
 127       cs_failed:
 128         return;
 129 }
 130
 131 static int ixj_config(struct pcmcia_device * link)
 132 {
 133         IXJ *j;
 134         ixj_info_t *info;
 135         tuple_t tuple;
 136         u_short buf[128];
 137         cisparse_t parse;
 138         cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
 139         cistpl_cftable_entry_t dflt =
 140         {
 141                 0
 142         };
 143         int last_ret, last_fn;
 144         info = link->priv;
 145         DEBUG(0, "ixj_config(0x%p)\n", link);
 146         tuple.TupleData = (cisdata_t *) buf;
 147         tuple.TupleOffset = 0;
 148         tuple.TupleDataMax = 255;
 149         tuple.Attributes = 0;
 150         tuple.DesiredTuple = CISTPL_CONFIG;
 151         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 152         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
 153         CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
 154         link->conf.ConfigBase = parse.config.base;
 155         link->conf.Present = parse.config.rmask[0];
 156         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 157         tuple.Attributes = 0;
 158         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 159         while (1) {
 160                 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
 161                                 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
 162                         goto next_entry;
 163                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 164                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
 165                         link->conf.ConfigIndex = cfg->index;
 166                         link->io.BasePort1 = io->win[0].base;
 167                         link->io.NumPorts1 = io->win[0].len;
 168                         if (io->nwin == 2) {
 169                                 link->io.BasePort2 = io->win[1].base;
 170                                 link->io.NumPorts2 = io->win[1].len;
 171                         }
 172                         if (pcmcia_request_io(link, &link->io) != 0)
 173                                 goto next_entry;
 174                         /* If we've got this far, we're done */
 175                         break;
 176                 }
 177               next_entry:
 178                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 179                         dflt = *cfg;
 180                 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
 181         }
 182
 183         CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 184
 185         /*
 186          *      Register the card with the core.
 187          */
 188         j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10);
 189
 190         info->ndev = 1;
 191         info->node.major = PHONE_MAJOR;
 192         link->dev_node = &info->node;
 193         ixj_get_serial(link, j);
 194         return 0;
 195       cs_failed:
 196         cs_error(link, last_fn, last_ret);
 197         ixj_cs_release(link);
 198         return -ENODEV;
 199 }
 200
 201 static void ixj_cs_release(struct pcmcia_device *link)
 202 {
 203         ixj_info_t *info = link->priv;
 204         DEBUG(0, "ixj_cs_release(0x%p)\n", link);
 205         info->ndev = 0;
 206         pcmcia_disable_device(link);
 207 }
 208
 209 static struct pcmcia_device_id ixj_ids[] = {
 210         PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
 211         PCMCIA_DEVICE_NULL
 212 };
 213 MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
 214
 215 static struct pcmcia_driver ixj_driver = {
 216         .owner          = THIS_MODULE,
 217         .drv            = {
 218                 .name   = "ixj_cs",
 219         },
 220         .probe          = ixj_probe,
 221         .remove         = ixj_detach,
 222         .id_table       = ixj_ids,
 223 };
 224
 225 static int __init ixj_pcmcia_init(void)
 226 {
 227         return pcmcia_register_driver(&ixj_driver);
 228 }
 229
 230 static void ixj_pcmcia_exit(void)
 231 {
 232         pcmcia_unregister_driver(&ixj_driver);
 233 }
 234
 235 module_init(ixj_pcmcia_init);
 236 module_exit(ixj_pcmcia_exit);
 237
 238 MODULE_LICENSE("GPL");