package/b43/src/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         struct ssb_bus *ssb = dev->priv;
  47
  48         return ssb_bus_suspend(ssb);
  49 }
  50
  51 static int b43_pcmcia_resume(struct pcmcia_device *dev)
  52 {
  53         struct ssb_bus *ssb = dev->priv;
  54
  55         return ssb_bus_resume(ssb);
  56 }
  57 #else /* CONFIG_PM */
  58 # define b43_pcmcia_suspend             NULL
  59 # define b43_pcmcia_resume              NULL
  60 #endif /* CONFIG_PM */
  61
  62 static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
  63 {
  64         struct ssb_bus *ssb;
  65         win_req_t win;
  66         memreq_t mem;
  67         tuple_t tuple;
  68         cisparse_t parse;
  69         int err = -ENOMEM;
  70         int res = 0;
  71         unsigned char buf[64];
  72
  73         ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
  74         if (!ssb)
  75                 goto out_error;
  76
  77         err = -ENODEV;
  78         tuple.DesiredTuple = CISTPL_CONFIG;
  79         tuple.Attributes = 0;
  80         tuple.TupleData = buf;
  81         tuple.TupleDataMax = sizeof(buf);
  82         tuple.TupleOffset = 0;
  83
  84         res = pcmcia_get_first_tuple(dev, &tuple);
  85         if (res != CS_SUCCESS)
  86                 goto err_kfree_ssb;
  87         res = pcmcia_get_tuple_data(dev, &tuple);
  88         if (res != CS_SUCCESS)
  89                 goto err_kfree_ssb;
  90         res = pcmcia_parse_tuple(dev, &tuple, &parse);
  91         if (res != CS_SUCCESS)
  92                 goto err_kfree_ssb;
  93
  94         dev->conf.ConfigBase = parse.config.base;
  95         dev->conf.Present = parse.config.rmask[0];
  96         dev->conf.Attributes = CONF_ENABLE_IRQ;
  97         dev->conf.IntType = INT_MEMORY_AND_IO;
  98
  99         dev->io.BasePort2 = 0;
 100         dev->io.NumPorts2 = 0;
 101         dev->io.Attributes2 = 0;
 102
 103         win.Attributes = WIN_ADDR_SPACE_MEM | WIN_MEMORY_TYPE_CM |
 104                          WIN_ENABLE | WIN_DATA_WIDTH_16 |
 105                          WIN_USE_WAIT;
 106         win.Base = 0;
 107         win.Size = SSB_CORE_SIZE;
 108         win.AccessSpeed = 250;
 109         res = pcmcia_request_window(&dev, &win, &dev->win);
 110         if (res != CS_SUCCESS)
 111                 goto err_kfree_ssb;
 112
 113         mem.CardOffset = 0;
 114         mem.Page = 0;
 115         res = pcmcia_map_mem_page(dev->win, &mem);
 116         if (res != CS_SUCCESS)
 117                 goto err_disable;
 118
 119         dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 120         dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
 121         dev->irq.Handler = NULL; /* The handler is registered later. */
 122         dev->irq.Instance = NULL;
 123         res = pcmcia_request_irq(dev, &dev->irq);
 124         if (res != CS_SUCCESS)
 125                 goto err_disable;
 126
 127         res = pcmcia_request_configuration(dev, &dev->conf);
 128         if (res != CS_SUCCESS)
 129                 goto err_disable;
 130
 131         err = ssb_bus_pcmciabus_register(ssb, dev, win.Base);
 132         if (err)
 133                 goto err_disable;
 134         dev->priv = ssb;
 135
 136         return 0;
 137
 138 err_disable:
 139         pcmcia_disable_device(dev);
 140 err_kfree_ssb:
 141         kfree(ssb);
 142 out_error:
 143         printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
 144                res, err);
 145         return err;
 146 }
 147
 148 static void __devexit b43_pcmcia_remove(struct pcmcia_device *dev)
 149 {
 150         struct ssb_bus *ssb = dev->priv;
 151
 152         ssb_bus_unregister(ssb);
 153         pcmcia_disable_device(dev);
 154         kfree(ssb);
 155         dev->priv = NULL;
 156 }
 157
 158 static struct pcmcia_driver b43_pcmcia_driver = {
 159         .owner          = THIS_MODULE,
 160         .drv            = {
 161                                 .name = "b43-pcmcia",
 162                         },
 163         .id_table       = b43_pcmcia_tbl,
 164         .probe          = b43_pcmcia_probe,
 165         .remove         = __devexit_p(b43_pcmcia_remove),
 166         .suspend        = b43_pcmcia_suspend,
 167         .resume         = b43_pcmcia_resume,
 168 };
 169
 170 int b43_pcmcia_init(void)
 171 {
 172         return pcmcia_register_driver(&b43_pcmcia_driver);
 173 }
 174
 175 void b43_pcmcia_exit(void)
 176 {
 177         pcmcia_unregister_driver(&b43_pcmcia_driver);
 178 }