1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Broadcom 43xx PCMCIA-SSB bridge module
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (c) 2007 Michael Buesch <m@bues.ch>
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Licensed under the GNU/GPL. See COPYING for details.
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include "ssb_private.h"
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/ssb/ssb.h>
12*4882a593Smuzhiyun #include <linux/slab.h>
13*4882a593Smuzhiyun #include <linux/module.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <pcmcia/cistpl.h>
16*4882a593Smuzhiyun #include <pcmcia/ciscode.h>
17*4882a593Smuzhiyun #include <pcmcia/ds.h>
18*4882a593Smuzhiyun #include <pcmcia/cisreg.h>
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun static const struct pcmcia_device_id ssb_host_pcmcia_tbl[] = {
21*4882a593Smuzhiyun PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
22*4882a593Smuzhiyun PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
23*4882a593Smuzhiyun PCMCIA_DEVICE_NULL,
24*4882a593Smuzhiyun };
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun MODULE_DEVICE_TABLE(pcmcia, ssb_host_pcmcia_tbl);
27*4882a593Smuzhiyun
ssb_host_pcmcia_probe(struct pcmcia_device * dev)28*4882a593Smuzhiyun static int ssb_host_pcmcia_probe(struct pcmcia_device *dev)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun struct ssb_bus *ssb;
31*4882a593Smuzhiyun int err = -ENOMEM;
32*4882a593Smuzhiyun int res = 0;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
35*4882a593Smuzhiyun if (!ssb)
36*4882a593Smuzhiyun goto out_error;
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun err = -ENODEV;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun dev->config_flags |= CONF_ENABLE_IRQ;
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun dev->resource[2]->flags |= WIN_ENABLE | WIN_DATA_WIDTH_16 |
43*4882a593Smuzhiyun WIN_USE_WAIT;
44*4882a593Smuzhiyun dev->resource[2]->start = 0;
45*4882a593Smuzhiyun dev->resource[2]->end = SSB_CORE_SIZE;
46*4882a593Smuzhiyun res = pcmcia_request_window(dev, dev->resource[2], 250);
47*4882a593Smuzhiyun if (res != 0)
48*4882a593Smuzhiyun goto err_kfree_ssb;
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun res = pcmcia_map_mem_page(dev, dev->resource[2], 0);
51*4882a593Smuzhiyun if (res != 0)
52*4882a593Smuzhiyun goto err_disable;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun if (!dev->irq)
55*4882a593Smuzhiyun goto err_disable;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun res = pcmcia_enable_device(dev);
58*4882a593Smuzhiyun if (res != 0)
59*4882a593Smuzhiyun goto err_disable;
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun err = ssb_bus_pcmciabus_register(ssb, dev, dev->resource[2]->start);
62*4882a593Smuzhiyun if (err)
63*4882a593Smuzhiyun goto err_disable;
64*4882a593Smuzhiyun dev->priv = ssb;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun return 0;
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun err_disable:
69*4882a593Smuzhiyun pcmcia_disable_device(dev);
70*4882a593Smuzhiyun err_kfree_ssb:
71*4882a593Smuzhiyun kfree(ssb);
72*4882a593Smuzhiyun out_error:
73*4882a593Smuzhiyun dev_err(&dev->dev, "Initialization failed (%d, %d)\n", res, err);
74*4882a593Smuzhiyun return err;
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun
ssb_host_pcmcia_remove(struct pcmcia_device * dev)77*4882a593Smuzhiyun static void ssb_host_pcmcia_remove(struct pcmcia_device *dev)
78*4882a593Smuzhiyun {
79*4882a593Smuzhiyun struct ssb_bus *ssb = dev->priv;
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun ssb_bus_unregister(ssb);
82*4882a593Smuzhiyun pcmcia_disable_device(dev);
83*4882a593Smuzhiyun kfree(ssb);
84*4882a593Smuzhiyun dev->priv = NULL;
85*4882a593Smuzhiyun }
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun #ifdef CONFIG_PM
ssb_host_pcmcia_suspend(struct pcmcia_device * dev)88*4882a593Smuzhiyun static int ssb_host_pcmcia_suspend(struct pcmcia_device *dev)
89*4882a593Smuzhiyun {
90*4882a593Smuzhiyun struct ssb_bus *ssb = dev->priv;
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun return ssb_bus_suspend(ssb);
93*4882a593Smuzhiyun }
94*4882a593Smuzhiyun
ssb_host_pcmcia_resume(struct pcmcia_device * dev)95*4882a593Smuzhiyun static int ssb_host_pcmcia_resume(struct pcmcia_device *dev)
96*4882a593Smuzhiyun {
97*4882a593Smuzhiyun struct ssb_bus *ssb = dev->priv;
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun return ssb_bus_resume(ssb);
100*4882a593Smuzhiyun }
101*4882a593Smuzhiyun #else /* CONFIG_PM */
102*4882a593Smuzhiyun # define ssb_host_pcmcia_suspend NULL
103*4882a593Smuzhiyun # define ssb_host_pcmcia_resume NULL
104*4882a593Smuzhiyun #endif /* CONFIG_PM */
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun static struct pcmcia_driver ssb_host_pcmcia_driver = {
107*4882a593Smuzhiyun .owner = THIS_MODULE,
108*4882a593Smuzhiyun .name = "ssb-pcmcia",
109*4882a593Smuzhiyun .id_table = ssb_host_pcmcia_tbl,
110*4882a593Smuzhiyun .probe = ssb_host_pcmcia_probe,
111*4882a593Smuzhiyun .remove = ssb_host_pcmcia_remove,
112*4882a593Smuzhiyun .suspend = ssb_host_pcmcia_suspend,
113*4882a593Smuzhiyun .resume = ssb_host_pcmcia_resume,
114*4882a593Smuzhiyun };
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun static int pcmcia_init_failed;
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun /*
119*4882a593Smuzhiyun * These are not module init/exit functions!
120*4882a593Smuzhiyun * The module_pcmcia_driver() helper cannot be used here.
121*4882a593Smuzhiyun */
ssb_host_pcmcia_init(void)122*4882a593Smuzhiyun int ssb_host_pcmcia_init(void)
123*4882a593Smuzhiyun {
124*4882a593Smuzhiyun pcmcia_init_failed = pcmcia_register_driver(&ssb_host_pcmcia_driver);
125*4882a593Smuzhiyun
126*4882a593Smuzhiyun return pcmcia_init_failed;
127*4882a593Smuzhiyun }
128*4882a593Smuzhiyun
ssb_host_pcmcia_exit(void)129*4882a593Smuzhiyun void ssb_host_pcmcia_exit(void)
130*4882a593Smuzhiyun {
131*4882a593Smuzhiyun if (!pcmcia_init_failed)
132*4882a593Smuzhiyun pcmcia_unregister_driver(&ssb_host_pcmcia_driver);
133*4882a593Smuzhiyun }
134