drivers/net/wireless/b43/pcmcia.c

   1 /*
   2
   3   Broadcom B43 wireless driver
   4
   5   Copyright (c) 2007 Michael Buesch <mb@bu3sch.de>
   6
   7   This program is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation; either version 2 of the License, or
  10   (at your option) any later version.
  11
  12   This program is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with this program; see the file COPYING.  If not, write to
  19   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  20   Boston, MA 02110-1301, USA.
  21
  22 */
  23
  24 #include <linux/ssb/ssb.h>
  25
  26 #include <pcmcia/cs_types.h>
  27 #include <pcmcia/cs.h>
  28 #include <pcmcia/cistpl.h>
  29 #include <pcmcia/ciscode.h>
  30 #include <pcmcia/ds.h>
  31 #include <pcmcia/cisreg.h>
  32
  33 static /*const */ struct pcmcia_device_id b43_pcmcia_tbl[] = {
  34         PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
  35         PCMCIA_DEVICE_NULL,
  36 };
  37
  38 MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
  39
  40 #ifdef CONFIG_PM
  41 static int b43_pcmcia_suspend(struct pcmcia_device *dev)
  42 {
  43         //TODO
  44         return 0;
  45 }
  46
  47 static int b43_pcmcia_resume(struct pcmcia_device *dev)
  48 {
  49         //TODO
  50         return 0;
  51 }
  52 #else /* CONFIG_PM */
  53 # define b43_pcmcia_suspend             NULL
  54 # define b43_pcmcia_resume              NULL
  55 #endif /* CONFIG_PM */
  56
  57 static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
  58 {
  59         struct ssb_bus *ssb;
  60         win_req_t win;
  61         memreq_t mem;
  62         tuple_t tuple;
  63         cisparse_t parse;
  64         int err = -ENOMEM;
  65         int res;
  66         unsigned char buf[64];
  67
  68         ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
  69         if (!ssb)
  70                 goto out;
  71
  72         err = -ENODEV;
  73         tuple.DesiredTuple = CISTPL_CONFIG;
  74         tuple.Attributes = 0;
  75         tuple.TupleData = buf;
  76         tuple.TupleDataMax = sizeof(buf);
  77         tuple.TupleOffset = 0;
  78
  79         res = pcmcia_get_first_tuple(dev, &tuple);
  80         if (res != CS_SUCCESS)
  81                 goto err_kfree_ssb;
  82         res = pcmcia_get_tuple_data(dev, &tuple);
  83         if (res != CS_SUCCESS)
  84                 goto err_kfree_ssb;
  85         res = pcmcia_parse_tuple(dev, &tuple, &parse);
  86         if (res != CS_SUCCESS)
  87                 goto err_kfree_ssb;
  88
  89         dev->conf.ConfigBase = parse.config.base;
  90         dev->conf.Present = parse.config.rmask[0];
  91
  92         dev->io.BasePort2 = 0;
  93         dev->io.NumPorts2 = 0;
  94         dev->io.Attributes2 = 0;
  95
  96         win.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
  97         win.Base = 0;
  98         win.Size = SSB_CORE_SIZE;
  99         win.AccessSpeed = 1000;
 100         res = pcmcia_request_window(&dev, &win, &dev->win);
 101         if (res != CS_SUCCESS)
 102                 goto err_kfree_ssb;
 103
 104         mem.CardOffset = 0;
 105         mem.Page = 0;
 106         res = pcmcia_map_mem_page(dev->win, &mem);
 107         if (res != CS_SUCCESS)
 108                 goto err_kfree_ssb;
 109
 110         res = pcmcia_request_configuration(dev, &dev->conf);
 111         if (res != CS_SUCCESS)
 112                 goto err_disable;
 113
 114         err = ssb_bus_pcmciabus_register(ssb, dev, win.Base);
 115         dev->priv = ssb;
 116
 117       out:
 118         return err;
 119       err_disable:
 120         pcmcia_disable_device(dev);
 121       err_kfree_ssb:
 122         kfree(ssb);
 123         return err;
 124 }
 125
 126 static void __devexit b43_pcmcia_remove(struct pcmcia_device *dev)
 127 {
 128         struct ssb_bus *ssb = dev->priv;
 129
 130         ssb_bus_unregister(ssb);
 131         pcmcia_release_window(dev->win);
 132         pcmcia_disable_device(dev);
 133         kfree(ssb);
 134         dev->priv = NULL;
 135 }
 136
 137 static struct pcmcia_driver b43_pcmcia_driver = {
 138         .owner = THIS_MODULE,
 139         .drv = {
 140                 .name = "b43-pcmcia",
 141                 },
 142         .id_table = b43_pcmcia_tbl,
 143         .probe = b43_pcmcia_probe,
 144         .remove = b43_pcmcia_remove,
 145         .suspend = b43_pcmcia_suspend,
 146         .resume = b43_pcmcia_resume,
 147 };
 148
 149 int b43_pcmcia_init(void)
 150 {
 151         return pcmcia_register_driver(&b43_pcmcia_driver);
 152 }
 153
 154 void b43_pcmcia_exit(void)
 155 {
 156         pcmcia_unregister_driver(&b43_pcmcia_driver);
 157 }