[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;
	memreq_t memreq_attr_memory;
	memreq_t memreq_common_memory;
	int ret;

	p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
	p_dev->io.BasePort1 = cfg->io.win[0].base;
	p_dev->io.NumPorts1 = cfg->io.win[0].len;
	p_dev->io.IOAddrLines = 16;

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

	memreq_common_memory.CardOffset = cfg->mem.win[0].card_addr;
	memreq_common_memory.Page = 0;

	ret = pcmcia_map_mem_page(p_dev, ipw->handle_common_memory,
				&memreq_common_memory);

	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;

	memreq_attr_memory.CardOffset = 0;
	memreq_attr_memory.Page = 0;

	ret = pcmcia_map_mem_page(p_dev, ipw->handle_attr_memory,
				&memreq_attr_memory);

	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;
	86	struct resource *io_resource;
	87	memreq_t memreq_attr_memory;
	88	memreq_t memreq_common_memory;
	89	int ret;
	90
aaa8cfda DB	91	p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
	92	p_dev->io.BasePort1 = cfg->io.win[0].base;
	93	p_dev->io.NumPorts1 = cfg->io.win[0].len;
	94	p_dev->io.IOAddrLines = 16;
	95
aaa8cfda DB	96	/* 0x40 causes it to generate level mode interrupts. */
	97	/* 0x04 enables IREQ pin. */
	98	p_dev->conf.ConfigIndex = cfg->index \| 0x44;
af757923 DB	99	ret = pcmcia_request_io(p_dev, &p_dev->io);
	100	if (ret)
	101	return ret;
aaa8cfda	102
9a017a91 DB	103	io_resource = request_region(p_dev->resource[0]->start,
9a017a91 DB	104	resource_size(p_dev->resource[0]),
af757923	105	IPWIRELESS_PCCARD_NAME);
099dc4fb	106
af757923 DB	107	if (cfg->mem.nwin == 0)
af757923 DB	108	return 0;
099dc4fb	109
af757923 DB	110	ipw->request_common_memory.Attributes =
	111	WIN_DATA_WIDTH_16 \| WIN_MEMORY_TYPE_CM \| WIN_ENABLE;
	112	ipw->request_common_memory.Base = cfg->mem.win[0].host_addr;
	113	ipw->request_common_memory.Size = cfg->mem.win[0].len;
	114	if (ipw->request_common_memory.Size < 0x1000)
	115	ipw->request_common_memory.Size = 0x1000;
	116	ipw->request_common_memory.AccessSpeed = 0;
	117
6838b03f	118	ret = pcmcia_request_window(p_dev, &ipw->request_common_memory,
af757923	119	&ipw->handle_common_memory);
099dc4fb	120
cbf624f0	121	if (ret != 0)
af757923	122	goto exit1;
099dc4fb	123
af757923 DB	124	memreq_common_memory.CardOffset = cfg->mem.win[0].card_addr;
af757923 DB	125	memreq_common_memory.Page = 0;
09e491e9	126
868575d1	127	ret = pcmcia_map_mem_page(p_dev, ipw->handle_common_memory,
af757923	128	&memreq_common_memory);
099dc4fb	129
cbf624f0	130	if (ret != 0)
af757923	131	goto exit2;
099dc4fb	132
af757923	133	ipw->is_v2_card = cfg->mem.win[0].len == 0x100;
099dc4fb	134
af757923 DB	135	ipw->common_memory = ioremap(ipw->request_common_memory.Base,
	136	ipw->request_common_memory.Size);
	137	request_mem_region(ipw->request_common_memory.Base,
	138	ipw->request_common_memory.Size,
	139	IPWIRELESS_PCCARD_NAME);
	140
	141	ipw->request_attr_memory.Attributes =
	142	WIN_DATA_WIDTH_16 \| WIN_MEMORY_TYPE_AM \| WIN_ENABLE;
	143	ipw->request_attr_memory.Base = 0;
	144	ipw->request_attr_memory.Size = 0; /* this used to be 0x1000 */
	145	ipw->request_attr_memory.AccessSpeed = 0;
099dc4fb	146
6838b03f	147	ret = pcmcia_request_window(p_dev, &ipw->request_attr_memory,
af757923	148	&ipw->handle_attr_memory);
099dc4fb	149
cbf624f0	150	if (ret != 0)
af757923	151	goto exit2;
099dc4fb	152
af757923 DB	153	memreq_attr_memory.CardOffset = 0;
af757923 DB	154	memreq_attr_memory.Page = 0;
099dc4fb	155
868575d1	156	ret = pcmcia_map_mem_page(p_dev, ipw->handle_attr_memory,
af757923	157	&memreq_attr_memory);
099dc4fb	158
cbf624f0	159	if (ret != 0)
af757923	160	goto exit3;
099dc4fb	161
af757923 DB	162	ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
	163	ipw->request_attr_memory.Size);
	164	request_mem_region(ipw->request_attr_memory.Base,
	165	ipw->request_attr_memory.Size, IPWIRELESS_PCCARD_NAME);
099dc4fb	166
af757923	167	return 0;
099dc4fb	168
af757923	169	exit3:
f5560da5	170	pcmcia_release_window(p_dev, ipw->handle_attr_memory);
af757923 DB	171	exit2:
	172	if (ipw->common_memory) {
	173	release_mem_region(ipw->request_common_memory.Base,
09e491e9	174	ipw->request_common_memory.Size);
af757923	175	iounmap(ipw->common_memory);
f5560da5	176	pcmcia_release_window(p_dev, ipw->handle_common_memory);
af757923	177	} else
f5560da5	178	pcmcia_release_window(p_dev, ipw->handle_common_memory);
af757923 DB	179	exit1:
	180	release_resource(io_resource);
	181	pcmcia_disable_device(p_dev);
	182	return -1;
	183	}
099dc4fb	184
af757923 DB	185	static int config_ipwireless(struct ipw_dev *ipw)
	186	{
	187	struct pcmcia_device *link = ipw->link;
	188	int ret = 0;
099dc4fb	189
af757923	190	ipw->is_v2_card = 0;
099dc4fb	191
af757923	192	ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
cbf624f0	193	if (ret != 0)
af757923	194	return ret;
099dc4fb	195
af757923 DB	196	link->conf.Attributes = CONF_ENABLE_IRQ;
af757923 DB	197	link->conf.IntType = INT_MEMORY_AND_IO;
099dc4fb	198
099dc4fb DS	199	INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
099dc4fb DS	200
9a017a91	201	ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
099dc4fb DS	202	ipw->attr_memory, ipw->common_memory,
	203	ipw->is_v2_card, signalled_reboot_callback,
	204	ipw);
	205
eb14120f	206	ret = pcmcia_request_irq(link, ipwireless_interrupt);
cbf624f0	207	if (ret != 0)
af757923	208	goto exit;
099dc4fb	209
099dc4fb DS	210	printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
	211	ipw->is_v2_card ? "V2/V3" : "V1");
	212	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
9a017a91	213	": I/O ports %pR, irq %d\n", link->resource[0],
eb14120f	214	(unsigned int) link->irq);
099dc4fb DS	215	if (ipw->attr_memory && ipw->common_memory)
099dc4fb DS	216	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
622e713e	217	": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
09e491e9 DS	218	ipw->request_attr_memory.Base,
	219	ipw->request_attr_memory.Base
	220	+ ipw->request_attr_memory.Size - 1,
	221	ipw->request_common_memory.Base,
	222	ipw->request_common_memory.Base
	223	+ ipw->request_common_memory.Size - 1);
099dc4fb DS	224
	225	ipw->network = ipwireless_network_create(ipw->hardware);
	226	if (!ipw->network)
af757923	227	goto exit;
099dc4fb	228
b498ada6	229	ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
099dc4fb	230	if (!ipw->tty)
af757923	231	goto exit;
099dc4fb DS	232
	233	ipwireless_init_hardware_v2_v3(ipw->hardware);
	234
	235	/*
	236	* Do the RequestConfiguration last, because it enables interrupts.
	237	* Then we don't get any interrupts before we're ready for them.
	238	*/
	239	ret = pcmcia_request_configuration(link, &link->conf);
	240
cbf624f0	241	if (ret != 0)
af757923	242	goto exit;
099dc4fb	243
099dc4fb DS	244	return 0;
099dc4fb DS	245
af757923	246	exit:
099dc4fb	247	if (ipw->attr_memory) {
09e491e9 DS	248	release_mem_region(ipw->request_attr_memory.Base,
09e491e9 DS	249	ipw->request_attr_memory.Size);
099dc4fb	250	iounmap(ipw->attr_memory);
f5560da5	251	pcmcia_release_window(link, ipw->handle_attr_memory);
099dc4fb	252	}
099dc4fb	253	if (ipw->common_memory) {
09e491e9 DS	254	release_mem_region(ipw->request_common_memory.Base,
09e491e9 DS	255	ipw->request_common_memory.Size);
099dc4fb	256	iounmap(ipw->common_memory);
f5560da5	257	pcmcia_release_window(link, ipw->handle_common_memory);
099dc4fb	258	}
099dc4fb	259	pcmcia_disable_device(link);
099dc4fb DS	260	return -1;
	261	}
	262
	263	static void release_ipwireless(struct ipw_dev *ipw)
	264	{
09e491e9 DS	265	if (ipw->common_memory) {
	266	release_mem_region(ipw->request_common_memory.Base,
	267	ipw->request_common_memory.Size);
099dc4fb	268	iounmap(ipw->common_memory);
09e491e9 DS	269	}
	270	if (ipw->attr_memory) {
	271	release_mem_region(ipw->request_attr_memory.Base,
	272	ipw->request_attr_memory.Size);
099dc4fb	273	iounmap(ipw->attr_memory);
09e491e9	274	}
099dc4fb	275	if (ipw->common_memory)
f5560da5	276	pcmcia_release_window(ipw->link, ipw->handle_common_memory);
099dc4fb	277	if (ipw->attr_memory)
f5560da5	278	pcmcia_release_window(ipw->link, ipw->handle_attr_memory);
09e491e9	279
09e491e9	280	pcmcia_disable_device(ipw->link);
099dc4fb DS	281	}
	282
	283	/*
	284	* ipwireless_attach() creates an "instance" of the driver, allocating
	285	* local data structures for one device (one interface). The device
	286	* is registered with Card Services.
	287	*
	288	* The pcmcia_device structure is initialized, but we don't actually
	289	* configure the card at this point -- we wait until we receive a
	290	* card insertion event.
	291	*/
	292	static int ipwireless_attach(struct pcmcia_device *link)
	293	{
	294	struct ipw_dev *ipw;
	295	int ret;
	296
	297	ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
	298	if (!ipw)
	299	return -ENOMEM;
	300
	301	ipw->link = link;
	302	link->priv = ipw;
099dc4fb	303
099dc4fb DS	304	ipw->hardware = ipwireless_hardware_create();
	305	if (!ipw->hardware) {
	306	kfree(ipw);
	307	return -ENOMEM;
	308	}
	309	/* RegisterClient will call config_ipwireless */
	310
	311	ret = config_ipwireless(ipw);
	312
	313	if (ret != 0) {
099dc4fb DS	314	ipwireless_detach(link);
	315	return ret;
	316	}
	317
	318	return 0;
	319	}
	320
	321	/*
	322	* This deletes a driver "instance". The device is de-registered with
	323	* Card Services. If it has been released, all local data structures
	324	* are freed. Otherwise, the structures will be freed when the device
	325	* is released.
	326	*/
	327	static void ipwireless_detach(struct pcmcia_device *link)
	328	{
	329	struct ipw_dev *ipw = link->priv;
	330
	331	release_ipwireless(ipw);
	332
099dc4fb DS	333	if (ipw->tty != NULL)
	334	ipwireless_tty_free(ipw->tty);
	335	if (ipw->network != NULL)
	336	ipwireless_network_free(ipw->network);
	337	if (ipw->hardware != NULL)
	338	ipwireless_hardware_free(ipw->hardware);
	339	kfree(ipw);
	340	}
	341
	342	static struct pcmcia_driver me = {
	343	.owner = THIS_MODULE,
	344	.probe = ipwireless_attach,
	345	.remove = ipwireless_detach,
	346	.drv = { .name = IPWIRELESS_PCCARD_NAME },
	347	.id_table = ipw_ids
	348	};
	349
	350	/*
	351	* Module insertion : initialisation of the module.
	352	* Register the card with cardmgr...
	353	*/
	354	static int __init init_ipwireless(void)
	355	{
	356	int ret;
	357
	358	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
	359	IPWIRELESS_PCMCIA_VERSION " by " IPWIRELESS_PCMCIA_AUTHOR "\n");
	360
	361	ret = ipwireless_tty_init();
	362	if (ret != 0)
	363	return ret;
	364
	365	ret = pcmcia_register_driver(&me);
	366	if (ret != 0)
	367	ipwireless_tty_release();
	368
	369	return ret;
	370	}
	371
	372	/*
	373	* Module removal
	374	*/
	375	static void __exit exit_ipwireless(void)
	376	{
	377	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
	378	IPWIRELESS_PCMCIA_VERSION " removed\n");
	379
	380	pcmcia_unregister_driver(&me);
	381	ipwireless_tty_release();
	382	}
	383
	384	module_init(init_ipwireless);
	385	module_exit(exit_ipwireless);
	386
	387	MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
	388	MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
	389	MODULE_LICENSE("GPL");