1 /*
2
3 Broadcom B43 wireless driver
4
5 Copyright (c) 2007 Michael Buesch <m@bues.ch>
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 #include <linux/module.h>
29
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_MANF_CARD(0x2D0, 0x476),
39 PCMCIA_DEVICE_NULL,
40 };
41
42 MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
43
44 #ifdef CONFIG_PM
b43_pcmcia_suspend(struct pcmcia_device * dev)45 static int b43_pcmcia_suspend(struct pcmcia_device *dev)
46 {
47 struct ssb_bus *ssb = dev->priv;
48
49 return ssb_bus_suspend(ssb);
50 }
51
b43_pcmcia_resume(struct pcmcia_device * dev)52 static int b43_pcmcia_resume(struct pcmcia_device *dev)
53 {
54 struct ssb_bus *ssb = dev->priv;
55
56 return ssb_bus_resume(ssb);
57 }
58 #else /* CONFIG_PM */
59 # define b43_pcmcia_suspend NULL
60 # define b43_pcmcia_resume NULL
61 #endif /* CONFIG_PM */
62
b43_pcmcia_probe(struct pcmcia_device * dev)63 static int b43_pcmcia_probe(struct pcmcia_device *dev)
64 {
65 struct ssb_bus *ssb;
66 int err = -ENOMEM;
67 int res = 0;
68
69 ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
70 if (!ssb)
71 goto out_error;
72
73 err = -ENODEV;
74
75 dev->config_flags |= CONF_ENABLE_IRQ;
76
77 dev->resource[2]->flags |= WIN_ENABLE | WIN_DATA_WIDTH_16 |
78 WIN_USE_WAIT;
79 dev->resource[2]->start = 0;
80 dev->resource[2]->end = SSB_CORE_SIZE;
81 res = pcmcia_request_window(dev, dev->resource[2], 250);
82 if (res != 0)
83 goto err_kfree_ssb;
84
85 res = pcmcia_map_mem_page(dev, dev->resource[2], 0);
86 if (res != 0)
87 goto err_disable;
88
89 if (!dev->irq)
90 goto err_disable;
91
92 res = pcmcia_enable_device(dev);
93 if (res != 0)
94 goto err_disable;
95
96 err = ssb_bus_pcmciabus_register(ssb, dev, dev->resource[2]->start);
97 if (err)
98 goto err_disable;
99 dev->priv = ssb;
100
101 return 0;
102
103 err_disable:
104 pcmcia_disable_device(dev);
105 err_kfree_ssb:
106 kfree(ssb);
107 out_error:
108 printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
109 res, err);
110 return err;
111 }
112
b43_pcmcia_remove(struct pcmcia_device * dev)113 static void b43_pcmcia_remove(struct pcmcia_device *dev)
114 {
115 struct ssb_bus *ssb = dev->priv;
116
117 ssb_bus_unregister(ssb);
118 pcmcia_disable_device(dev);
119 kfree(ssb);
120 dev->priv = NULL;
121 }
122
123 static struct pcmcia_driver b43_pcmcia_driver = {
124 .owner = THIS_MODULE,
125 .name = "b43-pcmcia",
126 .id_table = b43_pcmcia_tbl,
127 .probe = b43_pcmcia_probe,
128 .remove = b43_pcmcia_remove,
129 .suspend = b43_pcmcia_suspend,
130 .resume = b43_pcmcia_resume,
131 };
132
133 /*
134 * These are not module init/exit functions!
135 * The module_pcmcia_driver() helper cannot be used here.
136 */
b43_pcmcia_init(void)137 int b43_pcmcia_init(void)
138 {
139 return pcmcia_register_driver(&b43_pcmcia_driver);
140 }
141
b43_pcmcia_exit(void)142 void b43_pcmcia_exit(void)
143 {
144 pcmcia_unregister_driver(&b43_pcmcia_driver);
145 }
146