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 void ixj_config(dev_link_t * link);
  39 static void ixj_cs_release(dev_link_t * link);
  40
  41 static int ixj_attach(struct pcmcia_device *p_dev)
  42 {
  43         dev_link_t *link;
  44
  45         DEBUG(0, "ixj_attach()\n");
  46         /* Create new ixj device */
  47         link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
  48         if (!link)
  49                 return -ENOMEM;
  50         memset(link, 0, sizeof(struct dev_link_t));
  51         link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
  52         link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
  53         link->io.IOAddrLines = 3;
  54         link->conf.IntType = INT_MEMORY_AND_IO;
  55         link->priv = kmalloc(sizeof(struct ixj_info_t), GFP_KERNEL);
  56         if (!link->priv) {
  57                 kfree(link);
  58                 return -ENOMEM;
  59         }
  60         memset(link->priv, 0, sizeof(struct ixj_info_t));
  61
  62         link->handle = p_dev;
  63         p_dev->instance = link;
  64
  65         link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
  66         ixj_config(link);
  67
  68         return 0;
  69 }
  70
  71 static void ixj_detach(struct pcmcia_device *p_dev)
  72 {
  73         dev_link_t *link = dev_to_instance(p_dev);
  74
  75         DEBUG(0, "ixj_detach(0x%p)\n", link);
  76
  77         link->state &= ~DEV_RELEASE_PENDING;
  78         if (link->state & DEV_CONFIG)
  79                 ixj_cs_release(link);
  80
  81         kfree(link->priv);
  82         kfree(link);
  83 }
  84
  85 #define CS_CHECK(fn, ret) \
  86 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
  87
  88 static void ixj_get_serial(dev_link_t * link, IXJ * j)
  89 {
  90         client_handle_t handle;
  91         tuple_t tuple;
  92         u_short buf[128];
  93         char *str;
  94         int last_ret, last_fn, i, place;
  95         handle = link->handle;
  96         DEBUG(0, "ixj_get_serial(0x%p)\n", link);
  97         tuple.TupleData = (cisdata_t *) buf;
  98         tuple.TupleOffset = 0;
  99         tuple.TupleDataMax = 80;
 100         tuple.Attributes = 0;
 101         tuple.DesiredTuple = CISTPL_VERS_1;
 102         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 103         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
 104         str = (char *) buf;
 105         printk("PCMCIA Version %d.%d\n", str[0], str[1]);
 106         str += 2;
 107         printk("%s", str);
 108         str = str + strlen(str) + 1;
 109         printk(" %s", str);
 110         str = str + strlen(str) + 1;
 111         place = 1;
 112         for (i = strlen(str) - 1; i >= 0; i--) {
 113                 switch (str[i]) {
 114                 case '0':
 115                 case '1':
 116                 case '2':
 117                 case '3':
 118                 case '4':
 119                 case '5':
 120                 case '6':
 121                 case '7':
 122                 case '8':
 123                 case '9':
 124                         j->serial += (str[i] - 48) * place;
 125                         break;
 126                 case 'A':
 127                 case 'B':
 128                 case 'C':
 129                 case 'D':
 130                 case 'E':
 131                 case 'F':
 132                         j->serial += (str[i] - 55) * place;
 133                         break;
 134                 case 'a':
 135                 case 'b':
 136                 case 'c':
 137                 case 'd':
 138                 case 'e':
 139                 case 'f':
 140                         j->serial += (str[i] - 87) * place;
 141                         break;
 142                 }
 143                 place = place * 0x10;
 144         }
 145         str = str + strlen(str) + 1;
 146         printk(" version %s\n", str);
 147       cs_failed:
 148         return;
 149 }
 150
 151 static void ixj_config(dev_link_t * link)
 152 {
 153         IXJ *j;
 154         client_handle_t handle;
 155         ixj_info_t *info;
 156         tuple_t tuple;
 157         u_short buf[128];
 158         cisparse_t parse;
 159         cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
 160         cistpl_cftable_entry_t dflt =
 161         {
 162                 0
 163         };
 164         int last_ret, last_fn;
 165         handle = link->handle;
 166         info = link->priv;
 167         DEBUG(0, "ixj_config(0x%p)\n", link);
 168         tuple.TupleData = (cisdata_t *) buf;
 169         tuple.TupleOffset = 0;
 170         tuple.TupleDataMax = 255;
 171         tuple.Attributes = 0;
 172         tuple.DesiredTuple = CISTPL_CONFIG;
 173         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 174         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
 175         CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
 176         link->conf.ConfigBase = parse.config.base;
 177         link->conf.Present = parse.config.rmask[0];
 178         link->state |= DEV_CONFIG;
 179         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 180         tuple.Attributes = 0;
 181         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 182         while (1) {
 183                 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
 184                                 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
 185                         goto next_entry;
 186                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 187                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
 188                         link->conf.ConfigIndex = cfg->index;
 189                         link->io.BasePort1 = io->win[0].base;
 190                         link->io.NumPorts1 = io->win[0].len;
 191                         if (io->nwin == 2) {
 192                                 link->io.BasePort2 = io->win[1].base;
 193                                 link->io.NumPorts2 = io->win[1].len;
 194                         }
 195                         if (pcmcia_request_io(link->handle, &link->io) != 0)
 196                                 goto next_entry;
 197                         /* If we've got this far, we're done */
 198                         break;
 199                 }
 200               next_entry:
 201                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 202                         dflt = *cfg;
 203                 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
 204         }
 205
 206         CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
 207
 208         /*
 209          *      Register the card with the core.
 210          */
 211         j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10);
 212
 213         info->ndev = 1;
 214         info->node.major = PHONE_MAJOR;
 215         link->dev = &info->node;
 216         ixj_get_serial(link, j);
 217         link->state &= ~DEV_CONFIG_PENDING;
 218         return;
 219       cs_failed:
 220         cs_error(link->handle, last_fn, last_ret);
 221         ixj_cs_release(link);
 222 }
 223
 224 static void ixj_cs_release(dev_link_t *link)
 225 {
 226         ixj_info_t *info = link->priv;
 227         DEBUG(0, "ixj_cs_release(0x%p)\n", link);
 228         info->ndev = 0;
 229         pcmcia_disable_device(link->handle);
 230 }
 231
 232 static struct pcmcia_device_id ixj_ids[] = {
 233         PCMCIA_DEVICE_MANF_CARD(0x0257, 0x0600),
 234         PCMCIA_DEVICE_NULL
 235 };
 236 MODULE_DEVICE_TABLE(pcmcia, ixj_ids);
 237
 238 static struct pcmcia_driver ixj_driver = {
 239         .owner          = THIS_MODULE,
 240         .drv            = {
 241                 .name   = "ixj_cs",
 242         },
 243         .probe          = ixj_attach,
 244         .remove         = ixj_detach,
 245         .id_table       = ixj_ids,
 246 };
 247
 248 static int __init ixj_pcmcia_init(void)
 249 {
 250         return pcmcia_register_driver(&ixj_driver);
 251 }
 252
 253 static void ixj_pcmcia_exit(void)
 254 {
 255         pcmcia_unregister_driver(&ixj_driver);
 256 }
 257
 258 module_init(ixj_pcmcia_init);
 259 module_exit(ixj_pcmcia_exit);
 260
 261 MODULE_LICENSE("GPL");