[net-next-2.6.git] / drivers / char / pcmcia / ipwireless / main.c

/*
 * IPWireless 3G PCMCIA Network Driver
 *
 * Original code
 *   by Stephen Blackheath <stephen@blacksapphire.com>,
 *      Ben Martel <benm@symmetric.co.nz>
 *
 * Copyrighted as follows:
 *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
 *
 * Various driver changes and rewrites, port to new kernels
 *   Copyright (C) 2006-2007 Jiri Kosina
 *
 * Misc code cleanups and updates
 *   Copyright (C) 2007 David Sterba
 */

#include "hardware.h"
#include "network.h"
#include "main.h"
#include "tty.h"

#include <linux/delay.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/slab.h>

#include <pcmcia/cisreg.h>
#include <pcmcia/device_id.h>
#include <pcmcia/ss.h>
#include <pcmcia/ds.h>
#include <pcmcia/cs.h>

static struct pcmcia_device_id ipw_ids[] = {
	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
	PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, ipw_ids);

static void ipwireless_detach(struct pcmcia_device *link);

/*
 * Module params
 */
/* Debug mode: more verbose, print sent/recv bytes */
int ipwireless_debug;
int ipwireless_loopback;
int ipwireless_out_queue = 10;

module_param_named(debug, ipwireless_debug, int, 0);
module_param_named(loopback, ipwireless_loopback, int, 0);
module_param_named(out_queue, ipwireless_out_queue, int, 0);
MODULE_PARM_DESC(debug, "switch on debug messages [0]");
MODULE_PARM_DESC(loopback,
		"debug: enable ras_raw channel [0]");
MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");

/* Executes in process context. */
static void signalled_reboot_work(struct work_struct *work_reboot)
{
	struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
			work_reboot);
	struct pcmcia_device *link = ipw->link;
	pcmcia_reset_card(link->socket);
}

static void signalled_reboot_callback(void *callback_data)
{
	struct ipw_dev *ipw = (struct ipw_dev *) callback_data;

	/* Delegate to process context. */
	schedule_work(&ipw->work_reboot);
}

static int ipwireless_probe(struct pcmcia_device *p_dev,
			    cistpl_cftable_entry_t *cfg,
			    cistpl_cftable_entry_t *dflt,
			    unsigned int vcc,
			    void *priv_data)
{
	struct ipw_dev *ipw = priv_data;
	struct resource *io_resource;
	int ret;

	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
	p_dev->resource[0]->start = cfg->io.win[0].base;
	p_dev->resource[0]->end = cfg->io.win[0].len;

	/* 0x40 causes it to generate level mode interrupts. */
	/* 0x04 enables IREQ pin. */
	p_dev->conf.ConfigIndex = cfg->index | 0x44;
	p_dev->io_lines = 16;
	ret = pcmcia_request_io(p_dev);
	if (ret)
		return ret;

	io_resource = request_region(p_dev->resource[0]->start,
				resource_size(p_dev->resource[0]),
				IPWIRELESS_PCCARD_NAME);

	if (cfg->mem.nwin == 0)
		return 0;

	ipw->request_common_memory.Attributes =
		WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
	ipw->request_common_memory.Base = cfg->mem.win[0].host_addr;
	ipw->request_common_memory.Size = cfg->mem.win[0].len;
	if (ipw->request_common_memory.Size < 0x1000)
		ipw->request_common_memory.Size = 0x1000;
	ipw->request_common_memory.AccessSpeed = 0;

	ret = pcmcia_request_window(p_dev, &ipw->request_common_memory,
				&ipw->handle_common_memory);

	if (ret != 0)
		goto exit1;

	ret = pcmcia_map_mem_page(p_dev, ipw->handle_common_memory,
				cfg->mem.win[0].card_addr);

	if (ret != 0)
		goto exit2;

	ipw->is_v2_card = cfg->mem.win[0].len == 0x100;

	ipw->common_memory = ioremap(ipw->request_common_memory.Base,
				ipw->request_common_memory.Size);
	request_mem_region(ipw->request_common_memory.Base,
			ipw->request_common_memory.Size,
			IPWIRELESS_PCCARD_NAME);

	ipw->request_attr_memory.Attributes =
		WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE;
	ipw->request_attr_memory.Base = 0;
	ipw->request_attr_memory.Size = 0;	/* this used to be 0x1000 */
	ipw->request_attr_memory.AccessSpeed = 0;

	ret = pcmcia_request_window(p_dev, &ipw->request_attr_memory,
				&ipw->handle_attr_memory);

	if (ret != 0)
		goto exit2;

	ret = pcmcia_map_mem_page(p_dev, ipw->handle_attr_memory, 0);
	if (ret != 0)
		goto exit3;

	ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
				ipw->request_attr_memory.Size);
	request_mem_region(ipw->request_attr_memory.Base,
			ipw->request_attr_memory.Size, IPWIRELESS_PCCARD_NAME);

	return 0;

exit3:
	pcmcia_release_window(p_dev, ipw->handle_attr_memory);
exit2:
	if (ipw->common_memory) {
		release_mem_region(ipw->request_common_memory.Base,
				ipw->request_common_memory.Size);
		iounmap(ipw->common_memory);
		pcmcia_release_window(p_dev, ipw->handle_common_memory);
	} else
		pcmcia_release_window(p_dev, ipw->handle_common_memory);
exit1:
	release_resource(io_resource);
	pcmcia_disable_device(p_dev);
	return -1;
}

static int config_ipwireless(struct ipw_dev *ipw)
{
	struct pcmcia_device *link = ipw->link;
	int ret = 0;

	ipw->is_v2_card = 0;

	ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
	if (ret != 0)
		return ret;

	link->conf.Attributes = CONF_ENABLE_IRQ;
	link->conf.IntType = INT_MEMORY_AND_IO;

	INIT_WORK(&ipw->work_reboot, signalled_reboot_work);

	ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
				    ipw->attr_memory, ipw->common_memory,
				    ipw->is_v2_card, signalled_reboot_callback,
				    ipw);

	ret = pcmcia_request_irq(link, ipwireless_interrupt);
	if (ret != 0)
		goto exit;

	printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
			ipw->is_v2_card ? "V2/V3" : "V1");
	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
		": I/O ports %pR, irq %d\n", link->resource[0],
			(unsigned int) link->irq);
	if (ipw->attr_memory && ipw->common_memory)
		printk(KERN_INFO IPWIRELESS_PCCARD_NAME
			": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
			ipw->request_attr_memory.Base,
			ipw->request_attr_memory.Base
			+ ipw->request_attr_memory.Size - 1,
			ipw->request_common_memory.Base,
			ipw->request_common_memory.Base
			+ ipw->request_common_memory.Size - 1);

	ipw->network = ipwireless_network_create(ipw->hardware);
	if (!ipw->network)
		goto exit;

	ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
	if (!ipw->tty)
		goto exit;

	ipwireless_init_hardware_v2_v3(ipw->hardware);

	/*
	 * Do the RequestConfiguration last, because it enables interrupts.
	 * Then we don't get any interrupts before we're ready for them.
	 */
	ret = pcmcia_request_configuration(link, &link->conf);

	if (ret != 0)
		goto exit;

	return 0;

exit:
	if (ipw->attr_memory) {
		release_mem_region(ipw->request_attr_memory.Base,
				ipw->request_attr_memory.Size);
		iounmap(ipw->attr_memory);
		pcmcia_release_window(link, ipw->handle_attr_memory);
	}
	if (ipw->common_memory) {
		release_mem_region(ipw->request_common_memory.Base,
				ipw->request_common_memory.Size);
		iounmap(ipw->common_memory);
		pcmcia_release_window(link, ipw->handle_common_memory);
	}
	pcmcia_disable_device(link);
	return -1;
}

static void release_ipwireless(struct ipw_dev *ipw)
{
	if (ipw->common_memory) {
		release_mem_region(ipw->request_common_memory.Base,
				ipw->request_common_memory.Size);
		iounmap(ipw->common_memory);
	}
	if (ipw->attr_memory) {
		release_mem_region(ipw->request_attr_memory.Base,
				ipw->request_attr_memory.Size);
		iounmap(ipw->attr_memory);
	}
	if (ipw->common_memory)
		pcmcia_release_window(ipw->link, ipw->handle_common_memory);
	if (ipw->attr_memory)
		pcmcia_release_window(ipw->link, ipw->handle_attr_memory);

	pcmcia_disable_device(ipw->link);
}

/*
 * ipwireless_attach() creates an "instance" of the driver, allocating
 * local data structures for one device (one interface).  The device
 * is registered with Card Services.
 *
 * The pcmcia_device structure is initialized, but we don't actually
 * configure the card at this point -- we wait until we receive a
 * card insertion event.
 */
static int ipwireless_attach(struct pcmcia_device *link)
{
	struct ipw_dev *ipw;
	int ret;

	ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
	if (!ipw)
		return -ENOMEM;

	ipw->link = link;
	link->priv = ipw;

	ipw->hardware = ipwireless_hardware_create();
	if (!ipw->hardware) {
		kfree(ipw);
		return -ENOMEM;
	}
	/* RegisterClient will call config_ipwireless */

	ret = config_ipwireless(ipw);

	if (ret != 0) {
		ipwireless_detach(link);
		return ret;
	}

	return 0;
}

/*
 * This deletes a driver "instance".  The device is de-registered with
 * Card Services.  If it has been released, all local data structures
 * are freed.  Otherwise, the structures will be freed when the device
 * is released.
 */
static void ipwireless_detach(struct pcmcia_device *link)
{
	struct ipw_dev *ipw = link->priv;

	release_ipwireless(ipw);

	if (ipw->tty != NULL)
		ipwireless_tty_free(ipw->tty);
	if (ipw->network != NULL)
		ipwireless_network_free(ipw->network);
	if (ipw->hardware != NULL)
		ipwireless_hardware_free(ipw->hardware);
	kfree(ipw);
}

static struct pcmcia_driver me = {
	.owner		= THIS_MODULE,
	.probe          = ipwireless_attach,
	.remove         = ipwireless_detach,
	.drv = { .name  = IPWIRELESS_PCCARD_NAME },
	.id_table       = ipw_ids
};

/*
 * Module insertion : initialisation of the module.
 * Register the card with cardmgr...
 */
static int __init init_ipwireless(void)
{
	int ret;

	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
	       IPWIRELESS_PCMCIA_VERSION " by " IPWIRELESS_PCMCIA_AUTHOR "\n");

	ret = ipwireless_tty_init();
	if (ret != 0)
		return ret;

	ret = pcmcia_register_driver(&me);
	if (ret != 0)
		ipwireless_tty_release();

	return ret;
}

/*
 * Module removal
 */
static void __exit exit_ipwireless(void)
{
	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
			IPWIRELESS_PCMCIA_VERSION " removed\n");

	pcmcia_unregister_driver(&me);
	ipwireless_tty_release();
}

module_init(init_ipwireless);
module_exit(exit_ipwireless);

MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
MODULE_LICENSE("GPL");
Commit	Line	Data
099dc4fb DS	1	/*
	2	* IPWireless 3G PCMCIA Network Driver
	3	*
	4	* Original code
	5	* by Stephen Blackheath <stephen@blacksapphire.com>,
	6	* Ben Martel <benm@symmetric.co.nz>
	7	*
	8	* Copyrighted as follows:
	9	* Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
	10	*
	11	* Various driver changes and rewrites, port to new kernels
	12	* Copyright (C) 2006-2007 Jiri Kosina
	13	*
	14	* Misc code cleanups and updates
	15	* Copyright (C) 2007 David Sterba
	16	*/
	17
	18	#include "hardware.h"
	19	#include "network.h"
	20	#include "main.h"
	21	#include "tty.h"
	22
	23	#include <linux/delay.h>
	24	#include <linux/init.h>
	25	#include <linux/io.h>
	26	#include <linux/kernel.h>
	27	#include <linux/module.h>
	28	#include <linux/sched.h>
	29	#include <linux/slab.h>
	30
099dc4fb DS	31	#include <pcmcia/cisreg.h>
	32	#include <pcmcia/device_id.h>
	33	#include <pcmcia/ss.h>
	34	#include <pcmcia/ds.h>
	35	#include <pcmcia/cs.h>
	36
	37	static struct pcmcia_device_id ipw_ids[] = {
	38	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
	39	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
	40	PCMCIA_DEVICE_NULL
	41	};
	42	MODULE_DEVICE_TABLE(pcmcia, ipw_ids);
	43
	44	static void ipwireless_detach(struct pcmcia_device *link);
	45
	46	/*
	47	* Module params
	48	*/
	49	/* Debug mode: more verbose, print sent/recv bytes */
	50	int ipwireless_debug;
	51	int ipwireless_loopback;
bee9c7c0	52	int ipwireless_out_queue = 10;
099dc4fb DS	53
	54	module_param_named(debug, ipwireless_debug, int, 0);
	55	module_param_named(loopback, ipwireless_loopback, int, 0);
	56	module_param_named(out_queue, ipwireless_out_queue, int, 0);
	57	MODULE_PARM_DESC(debug, "switch on debug messages [0]");
	58	MODULE_PARM_DESC(loopback,
	59	"debug: enable ras_raw channel [0]");
bee9c7c0	60	MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
099dc4fb DS	61
	62	/* Executes in process context. */
	63	static void signalled_reboot_work(struct work_struct *work_reboot)
	64	{
	65	struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
	66	work_reboot);
	67	struct pcmcia_device *link = ipw->link;
cbf624f0	68	pcmcia_reset_card(link->socket);
099dc4fb DS	69	}
	70
	71	static void signalled_reboot_callback(void *callback_data)
	72	{
	73	struct ipw_dev ipw = (struct ipw_dev ) callback_data;
	74
	75	/* Delegate to process context. */
	76	schedule_work(&ipw->work_reboot);
	77	}
	78
af757923 DB	79	static int ipwireless_probe(struct pcmcia_device *p_dev,
	80	cistpl_cftable_entry_t *cfg,
	81	cistpl_cftable_entry_t *dflt,
	82	unsigned int vcc,
	83	void *priv_data)
aaa8cfda	84	{
af757923 DB	85	struct ipw_dev *ipw = priv_data;
af757923 DB	86	struct resource *io_resource;
af757923 DB	87	int ret;
af757923 DB	88
90abdc3b DB	89	p_dev->resource[0]->flags \|= IO_DATA_PATH_WIDTH_AUTO;
	90	p_dev->resource[0]->start = cfg->io.win[0].base;
	91	p_dev->resource[0]->end = cfg->io.win[0].len;
aaa8cfda	92
aaa8cfda DB	93	/* 0x40 causes it to generate level mode interrupts. */
	94	/* 0x04 enables IREQ pin. */
	95	p_dev->conf.ConfigIndex = cfg->index \| 0x44;
90abdc3b DB	96	p_dev->io_lines = 16;
90abdc3b DB	97	ret = pcmcia_request_io(p_dev);
af757923 DB	98	if (ret)
af757923 DB	99	return ret;
aaa8cfda	100
9a017a91 DB	101	io_resource = request_region(p_dev->resource[0]->start,
9a017a91 DB	102	resource_size(p_dev->resource[0]),
af757923	103	IPWIRELESS_PCCARD_NAME);
099dc4fb	104
af757923 DB	105	if (cfg->mem.nwin == 0)
af757923 DB	106	return 0;
099dc4fb	107
af757923 DB	108	ipw->request_common_memory.Attributes =
	109	WIN_DATA_WIDTH_16 \| WIN_MEMORY_TYPE_CM \| WIN_ENABLE;
	110	ipw->request_common_memory.Base = cfg->mem.win[0].host_addr;
	111	ipw->request_common_memory.Size = cfg->mem.win[0].len;
	112	if (ipw->request_common_memory.Size < 0x1000)
	113	ipw->request_common_memory.Size = 0x1000;
	114	ipw->request_common_memory.AccessSpeed = 0;
	115
6838b03f	116	ret = pcmcia_request_window(p_dev, &ipw->request_common_memory,
af757923	117	&ipw->handle_common_memory);
099dc4fb	118
cbf624f0	119	if (ret != 0)
af757923	120	goto exit1;
099dc4fb	121
868575d1	122	ret = pcmcia_map_mem_page(p_dev, ipw->handle_common_memory,
b5cb259e	123	cfg->mem.win[0].card_addr);
099dc4fb	124
cbf624f0	125	if (ret != 0)
af757923	126	goto exit2;
099dc4fb	127
af757923	128	ipw->is_v2_card = cfg->mem.win[0].len == 0x100;
099dc4fb	129
af757923 DB	130	ipw->common_memory = ioremap(ipw->request_common_memory.Base,
	131	ipw->request_common_memory.Size);
	132	request_mem_region(ipw->request_common_memory.Base,
	133	ipw->request_common_memory.Size,
	134	IPWIRELESS_PCCARD_NAME);
	135
	136	ipw->request_attr_memory.Attributes =
	137	WIN_DATA_WIDTH_16 \| WIN_MEMORY_TYPE_AM \| WIN_ENABLE;
	138	ipw->request_attr_memory.Base = 0;
	139	ipw->request_attr_memory.Size = 0; /* this used to be 0x1000 */
	140	ipw->request_attr_memory.AccessSpeed = 0;
099dc4fb	141
6838b03f	142	ret = pcmcia_request_window(p_dev, &ipw->request_attr_memory,
af757923	143	&ipw->handle_attr_memory);
099dc4fb	144
cbf624f0	145	if (ret != 0)
af757923	146	goto exit2;
099dc4fb	147
b5cb259e	148	ret = pcmcia_map_mem_page(p_dev, ipw->handle_attr_memory, 0);
cbf624f0	149	if (ret != 0)
af757923	150	goto exit3;
099dc4fb	151
af757923 DB	152	ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
	153	ipw->request_attr_memory.Size);
	154	request_mem_region(ipw->request_attr_memory.Base,
	155	ipw->request_attr_memory.Size, IPWIRELESS_PCCARD_NAME);
099dc4fb	156
af757923	157	return 0;
099dc4fb	158
af757923	159	exit3:
f5560da5	160	pcmcia_release_window(p_dev, ipw->handle_attr_memory);
af757923 DB	161	exit2:
	162	if (ipw->common_memory) {
	163	release_mem_region(ipw->request_common_memory.Base,
09e491e9	164	ipw->request_common_memory.Size);
af757923	165	iounmap(ipw->common_memory);
f5560da5	166	pcmcia_release_window(p_dev, ipw->handle_common_memory);
af757923	167	} else
f5560da5	168	pcmcia_release_window(p_dev, ipw->handle_common_memory);
af757923 DB	169	exit1:
	170	release_resource(io_resource);
	171	pcmcia_disable_device(p_dev);
	172	return -1;
	173	}
099dc4fb	174
af757923 DB	175	static int config_ipwireless(struct ipw_dev *ipw)
	176	{
	177	struct pcmcia_device *link = ipw->link;
	178	int ret = 0;
099dc4fb	179
af757923	180	ipw->is_v2_card = 0;
099dc4fb	181
af757923	182	ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
cbf624f0	183	if (ret != 0)
af757923	184	return ret;
099dc4fb	185
af757923 DB	186	link->conf.Attributes = CONF_ENABLE_IRQ;
af757923 DB	187	link->conf.IntType = INT_MEMORY_AND_IO;
099dc4fb	188
099dc4fb DS	189	INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
099dc4fb DS	190
9a017a91	191	ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
099dc4fb DS	192	ipw->attr_memory, ipw->common_memory,
	193	ipw->is_v2_card, signalled_reboot_callback,
	194	ipw);
	195
eb14120f	196	ret = pcmcia_request_irq(link, ipwireless_interrupt);
cbf624f0	197	if (ret != 0)
af757923	198	goto exit;
099dc4fb	199
099dc4fb DS	200	printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
	201	ipw->is_v2_card ? "V2/V3" : "V1");
	202	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
9a017a91	203	": I/O ports %pR, irq %d\n", link->resource[0],
eb14120f	204	(unsigned int) link->irq);
099dc4fb DS	205	if (ipw->attr_memory && ipw->common_memory)
099dc4fb DS	206	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
622e713e	207	": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
09e491e9 DS	208	ipw->request_attr_memory.Base,
	209	ipw->request_attr_memory.Base
	210	+ ipw->request_attr_memory.Size - 1,
	211	ipw->request_common_memory.Base,
	212	ipw->request_common_memory.Base
	213	+ ipw->request_common_memory.Size - 1);
099dc4fb DS	214
	215	ipw->network = ipwireless_network_create(ipw->hardware);
	216	if (!ipw->network)
af757923	217	goto exit;
099dc4fb	218
b498ada6	219	ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
099dc4fb	220	if (!ipw->tty)
af757923	221	goto exit;
099dc4fb DS	222
	223	ipwireless_init_hardware_v2_v3(ipw->hardware);
	224
	225	/*
	226	* Do the RequestConfiguration last, because it enables interrupts.
	227	* Then we don't get any interrupts before we're ready for them.
	228	*/
	229	ret = pcmcia_request_configuration(link, &link->conf);
	230
cbf624f0	231	if (ret != 0)
af757923	232	goto exit;
099dc4fb	233
099dc4fb DS	234	return 0;
099dc4fb DS	235
af757923	236	exit:
099dc4fb	237	if (ipw->attr_memory) {
09e491e9 DS	238	release_mem_region(ipw->request_attr_memory.Base,
09e491e9 DS	239	ipw->request_attr_memory.Size);
099dc4fb	240	iounmap(ipw->attr_memory);
f5560da5	241	pcmcia_release_window(link, ipw->handle_attr_memory);
099dc4fb	242	}
099dc4fb	243	if (ipw->common_memory) {
09e491e9 DS	244	release_mem_region(ipw->request_common_memory.Base,
09e491e9 DS	245	ipw->request_common_memory.Size);
099dc4fb	246	iounmap(ipw->common_memory);
f5560da5	247	pcmcia_release_window(link, ipw->handle_common_memory);
099dc4fb	248	}
099dc4fb	249	pcmcia_disable_device(link);
099dc4fb DS	250	return -1;
	251	}
	252
	253	static void release_ipwireless(struct ipw_dev *ipw)
	254	{
09e491e9 DS	255	if (ipw->common_memory) {
	256	release_mem_region(ipw->request_common_memory.Base,
	257	ipw->request_common_memory.Size);
099dc4fb	258	iounmap(ipw->common_memory);
09e491e9 DS	259	}
	260	if (ipw->attr_memory) {
	261	release_mem_region(ipw->request_attr_memory.Base,
	262	ipw->request_attr_memory.Size);
099dc4fb	263	iounmap(ipw->attr_memory);
09e491e9	264	}
099dc4fb	265	if (ipw->common_memory)
f5560da5	266	pcmcia_release_window(ipw->link, ipw->handle_common_memory);
099dc4fb	267	if (ipw->attr_memory)
f5560da5	268	pcmcia_release_window(ipw->link, ipw->handle_attr_memory);
09e491e9	269
09e491e9	270	pcmcia_disable_device(ipw->link);
099dc4fb DS	271	}
	272
	273	/*
	274	* ipwireless_attach() creates an "instance" of the driver, allocating
	275	* local data structures for one device (one interface). The device
	276	* is registered with Card Services.
	277	*
	278	* The pcmcia_device structure is initialized, but we don't actually
	279	* configure the card at this point -- we wait until we receive a
	280	* card insertion event.
	281	*/
	282	static int ipwireless_attach(struct pcmcia_device *link)
	283	{
	284	struct ipw_dev *ipw;
	285	int ret;
	286
	287	ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
	288	if (!ipw)
	289	return -ENOMEM;
	290
	291	ipw->link = link;
	292	link->priv = ipw;
099dc4fb	293
099dc4fb DS	294	ipw->hardware = ipwireless_hardware_create();
	295	if (!ipw->hardware) {
	296	kfree(ipw);
	297	return -ENOMEM;
	298	}
	299	/* RegisterClient will call config_ipwireless */
	300
	301	ret = config_ipwireless(ipw);
	302
	303	if (ret != 0) {
099dc4fb DS	304	ipwireless_detach(link);
	305	return ret;
	306	}
	307
	308	return 0;
	309	}
	310
	311	/*
	312	* This deletes a driver "instance". The device is de-registered with
	313	* Card Services. If it has been released, all local data structures
	314	* are freed. Otherwise, the structures will be freed when the device
	315	* is released.
	316	*/
	317	static void ipwireless_detach(struct pcmcia_device *link)
	318	{
	319	struct ipw_dev *ipw = link->priv;
	320
	321	release_ipwireless(ipw);
	322
099dc4fb DS	323	if (ipw->tty != NULL)
	324	ipwireless_tty_free(ipw->tty);
	325	if (ipw->network != NULL)
	326	ipwireless_network_free(ipw->network);
	327	if (ipw->hardware != NULL)
	328	ipwireless_hardware_free(ipw->hardware);
	329	kfree(ipw);
	330	}
	331
	332	static struct pcmcia_driver me = {
	333	.owner = THIS_MODULE,
	334	.probe = ipwireless_attach,
	335	.remove = ipwireless_detach,
	336	.drv = { .name = IPWIRELESS_PCCARD_NAME },
	337	.id_table = ipw_ids
	338	};
	339
	340	/*
	341	* Module insertion : initialisation of the module.
	342	* Register the card with cardmgr...
	343	*/
	344	static int __init init_ipwireless(void)
	345	{
	346	int ret;
	347
	348	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
	349	IPWIRELESS_PCMCIA_VERSION " by " IPWIRELESS_PCMCIA_AUTHOR "\n");
	350
	351	ret = ipwireless_tty_init();
	352	if (ret != 0)
	353	return ret;
	354
	355	ret = pcmcia_register_driver(&me);
	356	if (ret != 0)
	357	ipwireless_tty_release();
	358
	359	return ret;
	360	}
	361
	362	/*
	363	* Module removal
	364	*/
	365	static void __exit exit_ipwireless(void)
	366	{
	367	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
	368	IPWIRELESS_PCMCIA_VERSION " removed\n");
	369
	370	pcmcia_unregister_driver(&me);
	371	ipwireless_tty_release();
	372	}
	373
	374	module_init(init_ipwireless);
	375	module_exit(exit_ipwireless);
	376
	377	MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
	378	MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
	379	MODULE_LICENSE("GPL");