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 #include <linux/slab.h>
  28
  29 #include <pcmcia/cs_types.h>
  30 #include <pcmcia/cs.h>
  31 #include <pcmcia/cistpl.h>
  32 #include <pcmcia/ciscode.h>
  33 #include <pcmcia/ds.h>
  34 #include <pcmcia/cisreg.h>
  35
  36
  37 static /*const */ struct pcmcia_device_id b43_pcmcia_tbl[] = {
  38         PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
  39         PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
  40         PCMCIA_DEVICE_NULL,
  41 };
  42
  43 MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
  44
  45 #ifdef CONFIG_PM
  46 static int b43_pcmcia_suspend(struct pcmcia_device *dev)
  47 {
  48         struct ssb_bus *ssb = dev->priv;
  49
  50         return ssb_bus_suspend(ssb);
  51 }
  52
  53 static int b43_pcmcia_resume(struct pcmcia_device *dev)
  54 {
  55         struct ssb_bus *ssb = dev->priv;
  56
  57         return ssb_bus_resume(ssb);
  58 }
  59 #else /* CONFIG_PM */
  60 # define b43_pcmcia_suspend             NULL
  61 # define b43_pcmcia_resume              NULL
  62 #endif /* CONFIG_PM */
  63
  64 static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
  65 {
  66         struct ssb_bus *ssb;
  67         win_req_t win;
  68         memreq_t mem;
  69         int err = -ENOMEM;
  70         int res = 0;
  71
  72         ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
  73         if (!ssb)
  74                 goto out_error;
  75
  76         err = -ENODEV;
  77
  78         dev->conf.Attributes = CONF_ENABLE_IRQ;
  79         dev->conf.IntType = INT_MEMORY_AND_IO;
  80
  81         dev->io.BasePort2 = 0;
  82         dev->io.NumPorts2 = 0;
  83         dev->io.Attributes2 = 0;
  84
  85         win.Attributes = WIN_ADDR_SPACE_MEM | WIN_MEMORY_TYPE_CM |
  86                          WIN_ENABLE | WIN_DATA_WIDTH_16 |
  87                          WIN_USE_WAIT;
  88         win.Base = 0;
  89         win.Size = SSB_CORE_SIZE;
  90         win.AccessSpeed = 250;
  91         res = pcmcia_request_window(dev, &win, &dev->win);
  92         if (res != 0)
  93                 goto err_kfree_ssb;
  94
  95         mem.CardOffset = 0;
  96         mem.Page = 0;
  97         res = pcmcia_map_mem_page(dev, dev->win, &mem);
  98         if (res != 0)
  99                 goto err_disable;
 100
 101         dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 102         dev->irq.Handler = NULL; /* The handler is registered later. */
 103         res = pcmcia_request_irq(dev, &dev->irq);
 104         if (res != 0)
 105                 goto err_disable;
 106
 107         res = pcmcia_request_configuration(dev, &dev->conf);
 108         if (res != 0)
 109                 goto err_disable;
 110
 111         err = ssb_bus_pcmciabus_register(ssb, dev, win.Base);
 112         if (err)
 113                 goto err_disable;
 114         dev->priv = ssb;
 115
 116         return 0;
 117
 118 err_disable:
 119         pcmcia_disable_device(dev);
 120 err_kfree_ssb:
 121         kfree(ssb);
 122 out_error:
 123         printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
 124                res, err);
 125         return err;
 126 }
 127
 128 static void __devexit b43_pcmcia_remove(struct pcmcia_device *dev)
 129 {
 130         struct ssb_bus *ssb = dev->priv;
 131
 132         ssb_bus_unregister(ssb);
 133         pcmcia_disable_device(dev);
 134         kfree(ssb);
 135         dev->priv = NULL;
 136 }
 137
 138 static struct pcmcia_driver b43_pcmcia_driver = {
 139         .owner          = THIS_MODULE,
 140         .drv            = {
 141                                 .name = "b43-pcmcia",
 142                         },
 143         .id_table       = b43_pcmcia_tbl,
 144         .probe          = b43_pcmcia_probe,
 145         .remove         = __devexit_p(b43_pcmcia_remove),
 146         .suspend        = b43_pcmcia_suspend,
 147         .resume         = b43_pcmcia_resume,
 148 };
 149
 150 int b43_pcmcia_init(void)
 151 {
 152         return pcmcia_register_driver(&b43_pcmcia_driver);
 153 }
 154
 155 void b43_pcmcia_exit(void)
 156 {
 157         pcmcia_unregister_driver(&b43_pcmcia_driver);
 158 }