1/*
2 * Broadcom 43xx PCMCIA-SSB bridge module
3 *
4 * Copyright (c) 2007 Michael Buesch <m@bues.ch>
5 *
6 * Licensed under the GNU/GPL. See COPYING for details.
7 */
8
9#include "ssb_private.h"
10
11#include <linux/ssb/ssb.h>
12#include <linux/slab.h>
13#include <linux/module.h>
14
15#include <pcmcia/cistpl.h>
16#include <pcmcia/ciscode.h>
17#include <pcmcia/ds.h>
18#include <pcmcia/cisreg.h>
19
20static const struct pcmcia_device_id ssb_host_pcmcia_tbl[] = {
21	PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
22	PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
23	PCMCIA_DEVICE_NULL,
24};
25
26MODULE_DEVICE_TABLE(pcmcia, ssb_host_pcmcia_tbl);
27
28static int ssb_host_pcmcia_probe(struct pcmcia_device *dev)
29{
30	struct ssb_bus *ssb;
31	int err = -ENOMEM;
32	int res = 0;
33
34	ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
35	if (!ssb)
36		goto out_error;
37
38	err = -ENODEV;
39
40	dev->config_flags |= CONF_ENABLE_IRQ;
41
42	dev->resource[2]->flags |=  WIN_ENABLE | WIN_DATA_WIDTH_16 |
43			 WIN_USE_WAIT;
44	dev->resource[2]->start = 0;
45	dev->resource[2]->end = SSB_CORE_SIZE;
46	res = pcmcia_request_window(dev, dev->resource[2], 250);
47	if (res != 0)
48		goto err_kfree_ssb;
49
50	res = pcmcia_map_mem_page(dev, dev->resource[2], 0);
51	if (res != 0)
52		goto err_disable;
53
54	if (!dev->irq)
55		goto err_disable;
56
57	res = pcmcia_enable_device(dev);
58	if (res != 0)
59		goto err_disable;
60
61	err = ssb_bus_pcmciabus_register(ssb, dev, dev->resource[2]->start);
62	if (err)
63		goto err_disable;
64	dev->priv = ssb;
65
66	return 0;
67
68err_disable:
69	pcmcia_disable_device(dev);
70err_kfree_ssb:
71	kfree(ssb);
72out_error:
73	dev_err(&dev->dev, "Initialization failed (%d, %d)\n", res, err);
74	return err;
75}
76
77static void ssb_host_pcmcia_remove(struct pcmcia_device *dev)
78{
79	struct ssb_bus *ssb = dev->priv;
80
81	ssb_bus_unregister(ssb);
82	pcmcia_disable_device(dev);
83	kfree(ssb);
84	dev->priv = NULL;
85}
86
87#ifdef CONFIG_PM
88static int ssb_host_pcmcia_suspend(struct pcmcia_device *dev)
89{
90	struct ssb_bus *ssb = dev->priv;
91
92	return ssb_bus_suspend(ssb);
93}
94
95static int ssb_host_pcmcia_resume(struct pcmcia_device *dev)
96{
97	struct ssb_bus *ssb = dev->priv;
98
99	return ssb_bus_resume(ssb);
100}
101#else /* CONFIG_PM */
102# define ssb_host_pcmcia_suspend		NULL
103# define ssb_host_pcmcia_resume		NULL
104#endif /* CONFIG_PM */
105
106static struct pcmcia_driver ssb_host_pcmcia_driver = {
107	.owner		= THIS_MODULE,
108	.name		= "ssb-pcmcia",
109	.id_table	= ssb_host_pcmcia_tbl,
110	.probe		= ssb_host_pcmcia_probe,
111	.remove		= ssb_host_pcmcia_remove,
112	.suspend	= ssb_host_pcmcia_suspend,
113	.resume		= ssb_host_pcmcia_resume,
114};
115
116static int pcmcia_init_failed;
117
118/*
119 * These are not module init/exit functions!
120 * The module_pcmcia_driver() helper cannot be used here.
121 */
122int ssb_host_pcmcia_init(void)
123{
124	pcmcia_init_failed = pcmcia_register_driver(&ssb_host_pcmcia_driver);
125
126	return pcmcia_init_failed;
127}
128
129void ssb_host_pcmcia_exit(void)
130{
131	if (!pcmcia_init_failed)
132		pcmcia_unregister_driver(&ssb_host_pcmcia_driver);
133}
134