tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
36static /*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
42MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
43
44#ifdef CONFIG_PM
45static 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
52static 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
63static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
64{
65 struct ssb_bus *ssb;
66 win_req_t win;
67 memreq_t mem;
68 tuple_t tuple;
69 cisparse_t parse;
70 int err = -ENOMEM;
71 int res = 0;
72 unsigned char buf[64];
73
74 ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
75 if (!ssb)
76 goto out_error;
77
78 err = -ENODEV;
79 tuple.DesiredTuple = CISTPL_CONFIG;
80 tuple.Attributes = 0;
81 tuple.TupleData = buf;
82 tuple.TupleDataMax = sizeof(buf);
83 tuple.TupleOffset = 0;
84
85 res = pcmcia_get_first_tuple(dev, &tuple);
86 if (res != 0)
87 goto err_kfree_ssb;
88 res = pcmcia_get_tuple_data(dev, &tuple);
89 if (res != 0)
90 goto err_kfree_ssb;
91 res = pcmcia_parse_tuple(&tuple, &parse);
92 if (res != 0)
93 goto err_kfree_ssb;
94
95 dev->conf.ConfigBase = parse.config.base;
96 dev->conf.Present = parse.config.rmask[0];
97 dev->conf.Attributes = CONF_ENABLE_IRQ;
98 dev->conf.IntType = INT_MEMORY_AND_IO;
99
100 dev->io.BasePort2 = 0;
101 dev->io.NumPorts2 = 0;
102 dev->io.Attributes2 = 0;
103
104 win.Attributes = WIN_ADDR_SPACE_MEM | WIN_MEMORY_TYPE_CM |
105 WIN_ENABLE | WIN_DATA_WIDTH_16 |
106 WIN_USE_WAIT;
107 win.Base = 0;
108 win.Size = SSB_CORE_SIZE;
109 win.AccessSpeed = 250;
110 res = pcmcia_request_window(&dev, &win, &dev->win);
111 if (res != 0)
112 goto err_kfree_ssb;
113
114 mem.CardOffset = 0;
115 mem.Page = 0;
116 res = pcmcia_map_mem_page(dev->win, &mem);
117 if (res != 0)
118 goto err_disable;
119
120 dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
121 dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
122 dev->irq.Handler = NULL; /* The handler is registered later. */
123 dev->irq.Instance = NULL;
124 res = pcmcia_request_irq(dev, &dev->irq);
125 if (res != 0)
126 goto err_disable;
127
128 res = pcmcia_request_configuration(dev, &dev->conf);
129 if (res != 0)
130 goto err_disable;
131
132 err = ssb_bus_pcmciabus_register(ssb, dev, win.Base);
133 if (err)
134 goto err_disable;
135 dev->priv = ssb;
136
137 return 0;
138
139err_disable:
140 pcmcia_disable_device(dev);
141err_kfree_ssb:
142 kfree(ssb);
143out_error:
144 printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
145 res, err);
146 return err;
147}
148
149static void __devexit b43_pcmcia_remove(struct pcmcia_device *dev)
150{
151 struct ssb_bus *ssb = dev->priv;
152
153 ssb_bus_unregister(ssb);
154 pcmcia_disable_device(dev);
155 kfree(ssb);
156 dev->priv = NULL;
157}
158
159static struct pcmcia_driver b43_pcmcia_driver = {
160 .owner = THIS_MODULE,
161 .drv = {
162 .name = "b43-pcmcia",
163 },
164 .id_table = b43_pcmcia_tbl,
165 .probe = b43_pcmcia_probe,
166 .remove = __devexit_p(b43_pcmcia_remove),
167 .suspend = b43_pcmcia_suspend,
168 .resume = b43_pcmcia_resume,
169};
170
171int b43_pcmcia_init(void)
172{
173 return pcmcia_register_driver(&b43_pcmcia_driver);
174}
175
176void b43_pcmcia_exit(void)
177{
178 pcmcia_unregister_driver(&b43_pcmcia_driver);
179}