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 "pcmcia.h"
  25
  26 #include <linux/ssb/ssb.h>
  27
  28 #include <pcmcia/cs_types.h>
  29 #include <pcmcia/cs.h>
  30 #include <pcmcia/cistpl.h>
  31 #include <pcmcia/ciscode.h>
  32 #include <pcmcia/ds.h>
  33 #include <pcmcia/cisreg.h>
  34
  35
  36 static /*const */ struct pcmcia_device_id b43_pcmcia_tbl[] = {
  37         PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
  38         PCMCIA_DEVICE_NULL,
  39 };
  40
  41 MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
  42
  43 #ifdef CONFIG_PM
  44 static int b43_pcmcia_suspend(struct pcmcia_device *dev)
  45 {
  46         //TODO
  47         return 0;
  48 }
  49
  50 static int b43_pcmcia_resume(struct pcmcia_device *dev)
  51 {
  52         //TODO
  53         return 0;
  54 }
  55 #else /* CONFIG_PM */
  56 # define b43_pcmcia_suspend             NULL
  57 # define b43_pcmcia_resume              NULL
  58 #endif /* CONFIG_PM */
  59
  60 static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
  61 {
  62         struct ssb_bus *ssb;
  63         win_req_t win;
  64         memreq_t mem;
  65         tuple_t tuple;
  66         cisparse_t parse;
  67         int err = -ENOMEM;
  68         int res = 0;
  69         unsigned char buf[64];
  70
  71         ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
  72         if (!ssb)
  73                 goto out_error;
  74
  75         err = -ENODEV;
  76         tuple.DesiredTuple = CISTPL_CONFIG;
  77         tuple.Attributes = 0;
  78         tuple.TupleData = buf;
  79         tuple.TupleDataMax = sizeof(buf);
  80         tuple.TupleOffset = 0;
  81
  82         res = pcmcia_get_first_tuple(dev, &tuple);
  83         if (res != CS_SUCCESS)
  84                 goto err_kfree_ssb;
  85         res = pcmcia_get_tuple_data(dev, &tuple);
  86         if (res != CS_SUCCESS)
  87                 goto err_kfree_ssb;
  88         res = pcmcia_parse_tuple(dev, &tuple, &parse);
  89         if (res != CS_SUCCESS)
  90                 goto err_kfree_ssb;
  91
  92         dev->conf.ConfigBase = parse.config.base;
  93         dev->conf.Present = parse.config.rmask[0];
  94
  95         dev->io.BasePort2 = 0;
  96         dev->io.NumPorts2 = 0;
  97         dev->io.Attributes2 = 0;
  98
  99         win.Attributes = WIN_ADDR_SPACE_MEM | WIN_MEMORY_TYPE_CM |
 100                          WIN_ENABLE | WIN_DATA_WIDTH_16 |
 101                          WIN_USE_WAIT;
 102         win.Base = 0;
 103         win.Size = SSB_CORE_SIZE;
 104         win.AccessSpeed = 250;
 105         res = pcmcia_request_window(&dev, &win, &dev->win);
 106         if (res != CS_SUCCESS)
 107                 goto err_kfree_ssb;
 108
 109         mem.CardOffset = 0;
 110         mem.Page = 0;
 111         res = pcmcia_map_mem_page(dev->win, &mem);
 112         if (res != CS_SUCCESS)
 113                 goto err_disable;
 114
 115         dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_FIRST_SHARED;
 116         dev->irq.IRQInfo1 = IRQ_LEVEL_ID | IRQ_SHARE_ID;
 117         dev->irq.Handler = NULL; /* The handler is registered later. */
 118         dev->irq.Instance = NULL;
 119         res = pcmcia_request_irq(dev, &dev->irq);
 120         if (res != CS_SUCCESS)
 121                 goto err_disable;
 122
 123         res = pcmcia_request_configuration(dev, &dev->conf);
 124         if (res != CS_SUCCESS)
 125                 goto err_disable;
 126
 127         err = ssb_bus_pcmciabus_register(ssb, dev, win.Base);
 128         if (err)
 129                 goto err_disable;
 130         dev->priv = ssb;
 131
 132         return 0;
 133
 134 err_disable:
 135         pcmcia_disable_device(dev);
 136 err_kfree_ssb:
 137         kfree(ssb);
 138 out_error:
 139         printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
 140                res, err);
 141         return err;
 142 }
 143
 144 static void __devexit b43_pcmcia_remove(struct pcmcia_device *dev)
 145 {
 146         struct ssb_bus *ssb = dev->priv;
 147
 148         ssb_bus_unregister(ssb);
 149         pcmcia_disable_device(dev);
 150         kfree(ssb);
 151         dev->priv = NULL;
 152 }
 153
 154 static struct pcmcia_driver b43_pcmcia_driver = {
 155         .owner          = THIS_MODULE,
 156         .drv            = {
 157                                 .name = "b43-pcmcia",
 158                         },
 159         .id_table       = b43_pcmcia_tbl,
 160         .probe          = b43_pcmcia_probe,
 161         .remove         = __devexit_p(b43_pcmcia_remove),
 162         .suspend        = b43_pcmcia_suspend,
 163         .resume         = b43_pcmcia_resume,
 164 };
 165
 166 int b43_pcmcia_init(void)
 167 {
 168         return pcmcia_register_driver(&b43_pcmcia_driver);
 169 }
 170
 171 void b43_pcmcia_exit(void)
 172 {
 173         pcmcia_unregister_driver(&b43_pcmcia_driver);
 174 }