[deliverable/linux.git] / drivers / net / wireless / b43 / pcmcia.c

/*

  Broadcom B43 wireless driver

  Copyright (c) 2007 Michael Buesch <m@bues.ch>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  Boston, MA 02110-1301, USA.

*/

#include "pcmcia.h"

#include <linux/ssb/ssb.h>
#include <linux/slab.h>
#include <linux/module.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>


static const struct pcmcia_device_id b43_pcmcia_tbl[] = {
	PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
	PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
	PCMCIA_DEVICE_NULL,
};

MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);

#ifdef CONFIG_PM
static int b43_pcmcia_suspend(struct pcmcia_device *dev)
{
	struct ssb_bus *ssb = dev->priv;

	return ssb_bus_suspend(ssb);
}

static int b43_pcmcia_resume(struct pcmcia_device *dev)
{
	struct ssb_bus *ssb = dev->priv;

	return ssb_bus_resume(ssb);
}
#else /* CONFIG_PM */
# define b43_pcmcia_suspend		NULL
# define b43_pcmcia_resume		NULL
#endif /* CONFIG_PM */

static int b43_pcmcia_probe(struct pcmcia_device *dev)
{
	struct ssb_bus *ssb;
	int err = -ENOMEM;
	int res = 0;

	ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
	if (!ssb)
		goto out_error;

	err = -ENODEV;

	dev->config_flags |= CONF_ENABLE_IRQ;

	dev->resource[2]->flags |=  WIN_ENABLE | WIN_DATA_WIDTH_16 |
			 WIN_USE_WAIT;
	dev->resource[2]->start = 0;
	dev->resource[2]->end = SSB_CORE_SIZE;
	res = pcmcia_request_window(dev, dev->resource[2], 250);
	if (res != 0)
		goto err_kfree_ssb;

	res = pcmcia_map_mem_page(dev, dev->resource[2], 0);
	if (res != 0)
		goto err_disable;

	if (!dev->irq)
		goto err_disable;

	res = pcmcia_enable_device(dev);
	if (res != 0)
		goto err_disable;

	err = ssb_bus_pcmciabus_register(ssb, dev, dev->resource[2]->start);
	if (err)
		goto err_disable;
	dev->priv = ssb;

	return 0;

err_disable:
	pcmcia_disable_device(dev);
err_kfree_ssb:
	kfree(ssb);
out_error:
	printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
	       res, err);
	return err;
}

static void b43_pcmcia_remove(struct pcmcia_device *dev)
{
	struct ssb_bus *ssb = dev->priv;

	ssb_bus_unregister(ssb);
	pcmcia_disable_device(dev);
	kfree(ssb);
	dev->priv = NULL;
}

static struct pcmcia_driver b43_pcmcia_driver = {
	.owner		= THIS_MODULE,
	.name		= "b43-pcmcia",
	.id_table	= b43_pcmcia_tbl,
	.probe		= b43_pcmcia_probe,
	.remove		= b43_pcmcia_remove,
	.suspend	= b43_pcmcia_suspend,
	.resume		= b43_pcmcia_resume,
};

/*
 * These are not module init/exit functions!
 * The module_pcmcia_driver() helper cannot be used here.
 */
int b43_pcmcia_init(void)
{
	return pcmcia_register_driver(&b43_pcmcia_driver);
}

void b43_pcmcia_exit(void)
{
	pcmcia_unregister_driver(&b43_pcmcia_driver);
}
Commit	Line	Data
e4d6b795 MB	1	/*
	2
	3	Broadcom B43 wireless driver
	4
eb032b98	5	Copyright (c) 2007 Michael Buesch <m@bues.ch>
e4d6b795 MB	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
1a09404a MB	24	#include "pcmcia.h"
1a09404a MB	25
e4d6b795	26	#include <linux/ssb/ssb.h>
5a0e3ad6	27	#include <linux/slab.h>
9d9779e7	28	#include <linux/module.h>
e4d6b795	29
e4d6b795 MB	30	#include <pcmcia/cistpl.h>
	31	#include <pcmcia/ciscode.h>
	32	#include <pcmcia/ds.h>
	33	#include <pcmcia/cisreg.h>
	34
1a09404a	35
25f8f54f	36	static const struct pcmcia_device_id b43_pcmcia_tbl[] = {
e4d6b795	37	PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
cff782cd	38	PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
e4d6b795 MB	39	PCMCIA_DEVICE_NULL,
	40	};
	41
	42	MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
	43
	44	#ifdef CONFIG_PM
	45	static int b43_pcmcia_suspend(struct pcmcia_device *dev)
	46	{
8fe2b65a MB	47	struct ssb_bus *ssb = dev->priv;
	48
	49	return ssb_bus_suspend(ssb);
e4d6b795 MB	50	}
	51
	52	static int b43_pcmcia_resume(struct pcmcia_device *dev)
	53	{
8fe2b65a MB	54	struct ssb_bus *ssb = dev->priv;
	55
	56	return ssb_bus_resume(ssb);
e4d6b795 MB	57	}
	58	#else /* CONFIG_PM */
	59	# define b43_pcmcia_suspend NULL
	60	# define b43_pcmcia_resume NULL
	61	#endif /* CONFIG_PM */
	62
157c9436	63	static int b43_pcmcia_probe(struct pcmcia_device *dev)
e4d6b795 MB	64	{
e4d6b795 MB	65	struct ssb_bus *ssb;
e4d6b795	66	int err = -ENOMEM;
ce2d9059	67	int res = 0;
e4d6b795 MB	68
	69	ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
	70	if (!ssb)
ce2d9059	71	goto out_error;
e4d6b795 MB	72
e4d6b795 MB	73	err = -ENODEV;
e4d6b795	74
1ac71e5a	75	dev->config_flags \|= CONF_ENABLE_IRQ;
e4d6b795	76
cdb13808	77	dev->resource[2]->flags \|= WIN_ENABLE \| WIN_DATA_WIDTH_16 \|
ce2d9059	78	WIN_USE_WAIT;
cdb13808 DB	79	dev->resource[2]->start = 0;
	80	dev->resource[2]->end = SSB_CORE_SIZE;
	81	res = pcmcia_request_window(dev, dev->resource[2], 250);
4c89e88b	82	if (res != 0)
e4d6b795 MB	83	goto err_kfree_ssb;
e4d6b795 MB	84
cdb13808	85	res = pcmcia_map_mem_page(dev, dev->resource[2], 0);
4c89e88b	86	if (res != 0)
ce2d9059	87	goto err_disable;
e4d6b795	88
eb14120f	89	if (!dev->irq)
9dcb5f47 MB	90	goto err_disable;
9dcb5f47 MB	91
1ac71e5a	92	res = pcmcia_enable_device(dev);
4c89e88b	93	if (res != 0)
e4d6b795 MB	94	goto err_disable;
e4d6b795 MB	95
cdb13808	96	err = ssb_bus_pcmciabus_register(ssb, dev, dev->resource[2]->start);
ce2d9059 MB	97	if (err)
ce2d9059 MB	98	goto err_disable;
e4d6b795 MB	99	dev->priv = ssb;
e4d6b795 MB	100
ce2d9059 MB	101	return 0;
	102
	103	err_disable:
e4d6b795	104	pcmcia_disable_device(dev);
ce2d9059	105	err_kfree_ssb:
e4d6b795	106	kfree(ssb);
ce2d9059 MB	107	out_error:
	108	printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
	109	res, err);
e4d6b795 MB	110	return err;
	111	}
	112
157c9436	113	static void b43_pcmcia_remove(struct pcmcia_device *dev)
e4d6b795 MB	114	{
	115	struct ssb_bus *ssb = dev->priv;
	116
	117	ssb_bus_unregister(ssb);
e4d6b795 MB	118	pcmcia_disable_device(dev);
	119	kfree(ssb);
	120	dev->priv = NULL;
	121	}
	122
	123	static struct pcmcia_driver b43_pcmcia_driver = {
ce2d9059	124	.owner = THIS_MODULE,
2e9b981a	125	.name = "b43-pcmcia",
ce2d9059 MB	126	.id_table = b43_pcmcia_tbl,
ce2d9059 MB	127	.probe = b43_pcmcia_probe,
157c9436	128	.remove = b43_pcmcia_remove,
ce2d9059 MB	129	.suspend = b43_pcmcia_suspend,
ce2d9059 MB	130	.resume = b43_pcmcia_resume,
e4d6b795 MB	131	};
e4d6b795 MB	132
fdd3f29e HS	133	/*
	134	* These are not module init/exit functions!
	135	* The module_pcmcia_driver() helper cannot be used here.
	136	*/
e4d6b795 MB	137	int b43_pcmcia_init(void)
	138	{
	139	return pcmcia_register_driver(&b43_pcmcia_driver);
	140	}
	141
	142	void b43_pcmcia_exit(void)
	143	{
	144	pcmcia_unregister_driver(&b43_pcmcia_driver);
	145	}