[linux-2.6-block.git] / drivers / net / pcmcia / ibmtr_cs.c

/*======================================================================

    A PCMCIA token-ring driver for IBM-based cards

    This driver supports the IBM PCMCIA Token-Ring Card.
    Written by Steve Kipisz, kipisz@vnet.ibm.com or
                             bungy@ibm.net

    Written 1995,1996.

    This code is based on pcnet_cs.c from David Hinds.
    
    V2.2.0 February 1999 - Mike Phillips phillim@amtrak.com

    Linux V2.2.x presented significant changes to the underlying
    ibmtr.c code.  Mainly the code became a lot more organized and
    modular.

    This caused the old PCMCIA Token Ring driver to give up and go 
    home early. Instead of just patching the old code to make it 
    work, the PCMCIA code has been streamlined, updated and possibly
    improved.

    This code now only contains code required for the Card Services.
    All we do here is set the card up enough so that the real ibmtr.c
    driver can find it and work with it properly.

    i.e. We set up the io port, irq, mmio memory and shared ram
    memory.  This enables ibmtr_probe in ibmtr.c to find the card and
    configure it as though it was a normal ISA and/or PnP card.

    CHANGES

    v2.2.5 April 1999 Mike Phillips (phillim@amtrak.com)
    Obscure bug fix, required changed to ibmtr.c not ibmtr_cs.c
    
    v2.2.7 May 1999 Mike Phillips (phillim@amtrak.com)
    Updated to version 2.2.7 to match the first version of the kernel
    that the modification to ibmtr.c were incorporated into.
    
    v2.2.17 July 2000 Burt Silverman (burts@us.ibm.com)
    Address translation feature of PCMCIA controller is usable so
    memory windows can be placed in High memory (meaning above
    0xFFFFF.)

======================================================================*/

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/module.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/trdevice.h>
#include <linux/ibmtr.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>

#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/system.h>

#define PCMCIA
#include "../tokenring/ibmtr.c"

#ifdef PCMCIA_DEBUG
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0);
#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
static char *version =
"ibmtr_cs.c 1.10   1996/01/06 05:19:00 (Steve Kipisz)\n"
"           2.2.7  1999/05/03 12:00:00 (Mike Phillips)\n"
"           2.4.2  2001/30/28 Midnight (Burt Silverman)\n";
#else
#define DEBUG(n, args...)
#endif

/*====================================================================*/

/* Parameters that can be set with 'insmod' */

/* MMIO base address */
static u_long mmiobase = 0xce000;

/* SRAM base address */
static u_long srambase = 0xd0000;

/* SRAM size 8,16,32,64 */
static u_long sramsize = 64;

/* Ringspeed 4,16 */
static int ringspeed = 16;

module_param(mmiobase, ulong, 0);
module_param(srambase, ulong, 0);
module_param(sramsize, ulong, 0);
module_param(ringspeed, int, 0);
MODULE_LICENSE("GPL");

/*====================================================================*/

static void ibmtr_config(struct pcmcia_device *link);
static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase);
static void ibmtr_release(struct pcmcia_device *link);
static void ibmtr_detach(struct pcmcia_device *p_dev);

/*====================================================================*/

typedef struct ibmtr_dev_t {
	struct pcmcia_device	*p_dev;
    struct net_device	*dev;
    dev_node_t          node;
    window_handle_t     sram_win_handle;
    struct tok_info	*ti;
} ibmtr_dev_t;

static void netdev_get_drvinfo(struct net_device *dev,
			       struct ethtool_drvinfo *info)
{
	strcpy(info->driver, "ibmtr_cs");
}

static struct ethtool_ops netdev_ethtool_ops = {
	.get_drvinfo		= netdev_get_drvinfo,
};

/*======================================================================

    ibmtr_attach() creates an "instance" of the driver, allocating
    local data structures for one device.  The device is registered
    with Card Services.

======================================================================*/

static int ibmtr_attach(struct pcmcia_device *link)
{
    ibmtr_dev_t *info;
    struct net_device *dev;

    DEBUG(0, "ibmtr_attach()\n");

    /* Create new token-ring device */
    info = kmalloc(sizeof(*info), GFP_KERNEL); 
    if (!info) return -ENOMEM;
    memset(info,0,sizeof(*info));
    dev = alloc_trdev(sizeof(struct tok_info));
    if (!dev) {
	kfree(info);
	return -ENOMEM;
    }

    info->p_dev = link;
    link->priv = info;
    info->ti = netdev_priv(dev);

    link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
    link->io.NumPorts1 = 4;
    link->io.IOAddrLines = 16;
    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
    link->irq.IRQInfo1 = IRQ_LEVEL_ID;
    link->irq.Handler = &tok_interrupt;
    link->conf.Attributes = CONF_ENABLE_IRQ;
    link->conf.IntType = INT_MEMORY_AND_IO;
    link->conf.Present = PRESENT_OPTION;

    link->irq.Instance = info->dev = dev;

    SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);

    link->state |= DEV_PRESENT;
    ibmtr_config(link);

    return 0;
} /* ibmtr_attach */

/*======================================================================

    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 ibmtr_detach(struct pcmcia_device *link)
{
    struct ibmtr_dev_t *info = link->priv;
    struct net_device *dev = info->dev;

    DEBUG(0, "ibmtr_detach(0x%p)\n", link);

    if (link->dev_node)
	unregister_netdev(dev);

    {
	struct tok_info *ti = netdev_priv(dev);
	del_timer_sync(&(ti->tr_timer));
    }
    if (link->state & DEV_CONFIG)
        ibmtr_release(link);

    free_netdev(dev);
    kfree(info);
} /* ibmtr_detach */

/*======================================================================

    ibmtr_config() is scheduled to run after a CARD_INSERTION event
    is received, to configure the PCMCIA socket, and to make the
    token-ring device available to the system.

======================================================================*/

#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)

static void ibmtr_config(struct pcmcia_device *link)
{
    ibmtr_dev_t *info = link->priv;
    struct net_device *dev = info->dev;
    struct tok_info *ti = netdev_priv(dev);
    tuple_t tuple;
    cisparse_t parse;
    win_req_t req;
    memreq_t mem;
    int i, last_ret, last_fn;
    u_char buf[64];

    DEBUG(0, "ibmtr_config(0x%p)\n", link);

    tuple.Attributes = 0;
    tuple.TupleData = buf;
    tuple.TupleDataMax = 64;
    tuple.TupleOffset = 0;
    tuple.DesiredTuple = CISTPL_CONFIG;
    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
    CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
    CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
    link->conf.ConfigBase = parse.config.base;

    /* Configure card */
    link->state |= DEV_CONFIG;

    link->conf.ConfigIndex = 0x61;

    /* Determine if this is PRIMARY or ALTERNATE. */

    /* Try PRIMARY card at 0xA20-0xA23 */
    link->io.BasePort1 = 0xA20;
    i = pcmcia_request_io(link, &link->io);
    if (i != CS_SUCCESS) {
	/* Couldn't get 0xA20-0xA23.  Try ALTERNATE at 0xA24-0xA27. */
	link->io.BasePort1 = 0xA24;
	CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
    }
    dev->base_addr = link->io.BasePort1;

    CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
    dev->irq = link->irq.AssignedIRQ;
    ti->irq = link->irq.AssignedIRQ;
    ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);

    /* Allocate the MMIO memory window */
    req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
    req.Attributes |= WIN_USE_WAIT;
    req.Base = 0; 
    req.Size = 0x2000;
    req.AccessSpeed = 250;
    CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));

    mem.CardOffset = mmiobase;
    mem.Page = 0;
    CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
    ti->mmio = ioremap(req.Base, req.Size);

    /* Allocate the SRAM memory window */
    req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
    req.Attributes |= WIN_USE_WAIT;
    req.Base = 0;
    req.Size = sramsize * 1024;
    req.AccessSpeed = 250;
    CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &info->sram_win_handle));

    mem.CardOffset = srambase;
    mem.Page = 0;
    CS_CHECK(MapMemPage, pcmcia_map_mem_page(info->sram_win_handle, &mem));

    ti->sram_base = mem.CardOffset >> 12;
    ti->sram_virt = ioremap(req.Base, req.Size);
    ti->sram_phys = req.Base;

    CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));

    /*  Set up the Token-Ring Controller Configuration Register and
        turn on the card.  Check the "Local Area Network Credit Card
        Adapters Technical Reference"  SC30-3585 for this info.  */
    ibmtr_hw_setup(dev, mmiobase);

    link->dev_node = &info->node;
    link->state &= ~DEV_CONFIG_PENDING;
    SET_NETDEV_DEV(dev, &handle_to_dev(link));

    i = ibmtr_probe_card(dev);
    if (i != 0) {
	printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n");
	link->dev_node = NULL;
	goto failed;
    }

    strcpy(info->node.dev_name, dev->name);

    printk(KERN_INFO "%s: port %#3lx, irq %d,",
           dev->name, dev->base_addr, dev->irq);
    printk (" mmio %#5lx,", (u_long)ti->mmio);
    printk (" sram %#5lx,", (u_long)ti->sram_base << 12);
    printk ("\n" KERN_INFO "  hwaddr=");
    for (i = 0; i < TR_ALEN; i++)
        printk("%02X", dev->dev_addr[i]);
    printk("\n");
    return;

cs_failed:
    cs_error(link, last_fn, last_ret);
failed:
    ibmtr_release(link);
} /* ibmtr_config */

/*======================================================================

    After a card is removed, ibmtr_release() will unregister the net
    device, and release the PCMCIA configuration.  If the device is
    still open, this will be postponed until it is closed.

======================================================================*/

static void ibmtr_release(struct pcmcia_device *link)
{
	ibmtr_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

	DEBUG(0, "ibmtr_release(0x%p)\n", link);

	if (link->win) {
		struct tok_info *ti = netdev_priv(dev);
		iounmap(ti->mmio);
		pcmcia_release_window(info->sram_win_handle);
	}
	pcmcia_disable_device(link);
}

static int ibmtr_suspend(struct pcmcia_device *link)
{
	ibmtr_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

	if ((link->state & DEV_CONFIG) && (link->open))
		netif_device_detach(dev);

	return 0;
}

static int ibmtr_resume(struct pcmcia_device *link)
{
	ibmtr_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

	if ((link->state & DEV_CONFIG) && (link->open)) {
		ibmtr_probe(dev);	/* really? */
		netif_device_attach(dev);
	}

	return 0;
}


/*====================================================================*/

static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase)
{
    int i;

    /* Bizarre IBM behavior, there are 16 bits of information we
       need to set, but the card only allows us to send 4 bits at a 
       time.  For each byte sent to base_addr, bits 7-4 tell the
       card which part of the 16 bits we are setting, bits 3-0 contain 
       the actual information */

    /* First nibble provides 4 bits of mmio */
    i = (mmiobase >> 16) & 0x0F;
    outb(i, dev->base_addr);

    /* Second nibble provides 3 bits of mmio */
    i = 0x10 | ((mmiobase >> 12) & 0x0E);
    outb(i, dev->base_addr);

    /* Third nibble, hard-coded values */
    i = 0x26;
    outb(i, dev->base_addr);

    /* Fourth nibble sets shared ram page size */

    /* 8 = 00, 16 = 01, 32 = 10, 64 = 11 */          
    i = (sramsize >> 4) & 0x07;
    i = ((i == 4) ? 3 : i) << 2;
    i |= 0x30;

    if (ringspeed == 16)
	i |= 2;
    if (dev->base_addr == 0xA24)
	i |= 1;
    outb(i, dev->base_addr);

    /* 0x40 will release the card for use */
    outb(0x40, dev->base_addr);

    return;
}

static struct pcmcia_device_id ibmtr_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("3Com", "TokenLink Velocity PC Card", 0x41240e5b, 0x82c3734e),
	PCMCIA_DEVICE_PROD_ID12("IBM", "TOKEN RING", 0xb569a6e5, 0xbf8eed47),
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, ibmtr_ids);

static struct pcmcia_driver ibmtr_cs_driver = {
	.owner		= THIS_MODULE,
	.drv		= {
		.name	= "ibmtr_cs",
	},
	.probe		= ibmtr_attach,
	.remove		= ibmtr_detach,
	.id_table       = ibmtr_ids,
	.suspend	= ibmtr_suspend,
	.resume		= ibmtr_resume,
};

static int __init init_ibmtr_cs(void)
{
	return pcmcia_register_driver(&ibmtr_cs_driver);
}

static void __exit exit_ibmtr_cs(void)
{
	pcmcia_unregister_driver(&ibmtr_cs_driver);
}

module_init(init_ibmtr_cs);
module_exit(exit_ibmtr_cs);
Commit	Line	Data
1da177e4 LT	1	/*======================================================================
	2
	3	A PCMCIA token-ring driver for IBM-based cards
	4
	5	This driver supports the IBM PCMCIA Token-Ring Card.
	6	Written by Steve Kipisz, kipisz@vnet.ibm.com or
	7	bungy@ibm.net
	8
	9	Written 1995,1996.
	10
	11	This code is based on pcnet_cs.c from David Hinds.
	12
	13	V2.2.0 February 1999 - Mike Phillips phillim@amtrak.com
	14
	15	Linux V2.2.x presented significant changes to the underlying
	16	ibmtr.c code. Mainly the code became a lot more organized and
	17	modular.
	18
	19	This caused the old PCMCIA Token Ring driver to give up and go
	20	home early. Instead of just patching the old code to make it
	21	work, the PCMCIA code has been streamlined, updated and possibly
	22	improved.
	23
	24	This code now only contains code required for the Card Services.
	25	All we do here is set the card up enough so that the real ibmtr.c
	26	driver can find it and work with it properly.
	27
	28	i.e. We set up the io port, irq, mmio memory and shared ram
	29	memory. This enables ibmtr_probe in ibmtr.c to find the card and
	30	configure it as though it was a normal ISA and/or PnP card.
	31
	32	CHANGES
	33
	34	v2.2.5 April 1999 Mike Phillips (phillim@amtrak.com)
	35	Obscure bug fix, required changed to ibmtr.c not ibmtr_cs.c
	36
	37	v2.2.7 May 1999 Mike Phillips (phillim@amtrak.com)
	38	Updated to version 2.2.7 to match the first version of the kernel
	39	that the modification to ibmtr.c were incorporated into.
	40
	41	v2.2.17 July 2000 Burt Silverman (burts@us.ibm.com)
	42	Address translation feature of PCMCIA controller is usable so
	43	memory windows can be placed in High memory (meaning above
	44	0xFFFFF.)
	45
	46	======================================================================*/
	47
	48	#include <linux/kernel.h>
	49	#include <linux/init.h>
	50	#include <linux/ptrace.h>
	51	#include <linux/slab.h>
	52	#include <linux/string.h>
	53	#include <linux/timer.h>
	54	#include <linux/module.h>
	55	#include <linux/ethtool.h>
	56	#include <linux/netdevice.h>
	57	#include <linux/trdevice.h>
	58	#include <linux/ibmtr.h>
	59
1da177e4 LT	60	#include <pcmcia/cs_types.h>
	61	#include <pcmcia/cs.h>
	62	#include <pcmcia/cistpl.h>
	63	#include <pcmcia/ds.h>
	64
	65	#include <asm/uaccess.h>
	66	#include <asm/io.h>
	67	#include <asm/system.h>
	68
	69	#define PCMCIA
	70	#include "../tokenring/ibmtr.c"
	71
	72	#ifdef PCMCIA_DEBUG
	73	static int pc_debug = PCMCIA_DEBUG;
	74	module_param(pc_debug, int, 0);
	75	#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
	76	static char *version =
	77	"ibmtr_cs.c 1.10 1996/01/06 05:19:00 (Steve Kipisz)\n"
	78	" 2.2.7 1999/05/03 12:00:00 (Mike Phillips)\n"
	79	" 2.4.2 2001/30/28 Midnight (Burt Silverman)\n";
	80	#else
	81	#define DEBUG(n, args...)
	82	#endif
	83
	84	/====================================================================/
	85
	86	/* Parameters that can be set with 'insmod' */
	87
	88	/* MMIO base address */
	89	static u_long mmiobase = 0xce000;
	90
	91	/* SRAM base address */
	92	static u_long srambase = 0xd0000;
	93
	94	/* SRAM size 8,16,32,64 */
	95	static u_long sramsize = 64;
	96
	97	/* Ringspeed 4,16 */
	98	static int ringspeed = 16;
	99
	100	module_param(mmiobase, ulong, 0);
	101	module_param(srambase, ulong, 0);
	102	module_param(sramsize, ulong, 0);
	103	module_param(ringspeed, int, 0);
	104	MODULE_LICENSE("GPL");
	105
	106	/====================================================================/
	107
fba395ee	108	static void ibmtr_config(struct pcmcia_device *link);
1da177e4	109	static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase);
fba395ee	110	static void ibmtr_release(struct pcmcia_device *link);
cc3b4866	111	static void ibmtr_detach(struct pcmcia_device *p_dev);
1da177e4	112
1da177e4 LT	113	/====================================================================/
	114
	115	typedef struct ibmtr_dev_t {
fd238232	116	struct pcmcia_device *p_dev;
1da177e4 LT	117	struct net_device *dev;
	118	dev_node_t node;
	119	window_handle_t sram_win_handle;
	120	struct tok_info *ti;
	121	} ibmtr_dev_t;
	122
	123	static void netdev_get_drvinfo(struct net_device *dev,
	124	struct ethtool_drvinfo *info)
	125	{
	126	strcpy(info->driver, "ibmtr_cs");
	127	}
	128
	129	static struct ethtool_ops netdev_ethtool_ops = {
	130	.get_drvinfo = netdev_get_drvinfo,
	131	};
	132
	133	/*======================================================================
	134
	135	ibmtr_attach() creates an "instance" of the driver, allocating
	136	local data structures for one device. The device is registered
	137	with Card Services.
	138
	139	======================================================================*/
	140
fba395ee	141	static int ibmtr_attach(struct pcmcia_device *link)
1da177e4 LT	142	{
1da177e4 LT	143	ibmtr_dev_t *info;
1da177e4	144	struct net_device *dev;
fba395ee	145
1da177e4 LT	146	DEBUG(0, "ibmtr_attach()\n");
	147
	148	/* Create new token-ring device */
	149	info = kmalloc(sizeof(*info), GFP_KERNEL);
f8cfa618	150	if (!info) return -ENOMEM;
1da177e4 LT	151	memset(info,0,sizeof(*info));
1da177e4 LT	152	dev = alloc_trdev(sizeof(struct tok_info));
f8cfa618 DB	153	if (!dev) {
	154	kfree(info);
	155	return -ENOMEM;
	156	}
1da177e4	157
fba395ee	158	info->p_dev = link;
1da177e4 LT	159	link->priv = info;
	160	info->ti = netdev_priv(dev);
	161
	162	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
	163	link->io.NumPorts1 = 4;
	164	link->io.IOAddrLines = 16;
	165	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE \| IRQ_HANDLE_PRESENT;
	166	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
	167	link->irq.Handler = &tok_interrupt;
	168	link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4 LT	169	link->conf.IntType = INT_MEMORY_AND_IO;
	170	link->conf.Present = PRESENT_OPTION;
	171
	172	link->irq.Instance = info->dev = dev;
1da177e4	173
fd238232	174	SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
1da177e4	175
f8cfa618 DB	176	link->state \|= DEV_PRESENT;
f8cfa618 DB	177	ibmtr_config(link);
1da177e4	178
f8cfa618	179	return 0;
1da177e4 LT	180	} /* ibmtr_attach */
	181
	182	/*======================================================================
	183
	184	This deletes a driver "instance". The device is de-registered
	185	with Card Services. If it has been released, all local data
	186	structures are freed. Otherwise, the structures will be freed
	187	when the device is released.
	188
	189	======================================================================*/
	190
fba395ee	191	static void ibmtr_detach(struct pcmcia_device *link)
1da177e4 LT	192	{
1da177e4 LT	193	struct ibmtr_dev_t *info = link->priv;
b4635811	194	struct net_device *dev = info->dev;
1da177e4 LT	195
	196	DEBUG(0, "ibmtr_detach(0x%p)\n", link);
	197
fd238232	198	if (link->dev_node)
1da177e4 LT	199	unregister_netdev(dev);
	200
	201	{
	202	struct tok_info *ti = netdev_priv(dev);
	203	del_timer_sync(&(ti->tr_timer));
	204	}
	205	if (link->state & DEV_CONFIG)
	206	ibmtr_release(link);
	207
1da177e4	208	free_netdev(dev);
b4635811	209	kfree(info);
1da177e4 LT	210	} /* ibmtr_detach */
	211
	212	/*======================================================================
	213
	214	ibmtr_config() is scheduled to run after a CARD_INSERTION event
	215	is received, to configure the PCMCIA socket, and to make the
	216	token-ring device available to the system.
	217
	218	======================================================================*/
	219
	220	#define CS_CHECK(fn, ret) \
	221	do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
	222
fba395ee	223	static void ibmtr_config(struct pcmcia_device *link)
1da177e4	224	{
1da177e4 LT	225	ibmtr_dev_t *info = link->priv;
	226	struct net_device *dev = info->dev;
	227	struct tok_info *ti = netdev_priv(dev);
	228	tuple_t tuple;
	229	cisparse_t parse;
	230	win_req_t req;
	231	memreq_t mem;
	232	int i, last_ret, last_fn;
	233	u_char buf[64];
	234
	235	DEBUG(0, "ibmtr_config(0x%p)\n", link);
	236
	237	tuple.Attributes = 0;
	238	tuple.TupleData = buf;
	239	tuple.TupleDataMax = 64;
	240	tuple.TupleOffset = 0;
	241	tuple.DesiredTuple = CISTPL_CONFIG;
fba395ee DB	242	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
	243	CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
	244	CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
1da177e4 LT	245	link->conf.ConfigBase = parse.config.base;
	246
	247	/* Configure card */
	248	link->state \|= DEV_CONFIG;
	249
	250	link->conf.ConfigIndex = 0x61;
	251
	252	/* Determine if this is PRIMARY or ALTERNATE. */
	253
	254	/* Try PRIMARY card at 0xA20-0xA23 */
	255	link->io.BasePort1 = 0xA20;
fba395ee	256	i = pcmcia_request_io(link, &link->io);
1da177e4 LT	257	if (i != CS_SUCCESS) {
	258	/* Couldn't get 0xA20-0xA23. Try ALTERNATE at 0xA24-0xA27. */
	259	link->io.BasePort1 = 0xA24;
fba395ee	260	CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
1da177e4 LT	261	}
	262	dev->base_addr = link->io.BasePort1;
	263
fba395ee	264	CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
1da177e4 LT	265	dev->irq = link->irq.AssignedIRQ;
	266	ti->irq = link->irq.AssignedIRQ;
	267	ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);
	268
	269	/* Allocate the MMIO memory window */
	270	req.Attributes = WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	271	req.Attributes \|= WIN_USE_WAIT;
	272	req.Base = 0;
	273	req.Size = 0x2000;
	274	req.AccessSpeed = 250;
fba395ee	275	CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));
1da177e4 LT	276
	277	mem.CardOffset = mmiobase;
	278	mem.Page = 0;
	279	CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
	280	ti->mmio = ioremap(req.Base, req.Size);
	281
	282	/* Allocate the SRAM memory window */
	283	req.Attributes = WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	284	req.Attributes \|= WIN_USE_WAIT;
	285	req.Base = 0;
	286	req.Size = sramsize * 1024;
	287	req.AccessSpeed = 250;
fba395ee	288	CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &info->sram_win_handle));
1da177e4 LT	289
	290	mem.CardOffset = srambase;
	291	mem.Page = 0;
	292	CS_CHECK(MapMemPage, pcmcia_map_mem_page(info->sram_win_handle, &mem));
	293
	294	ti->sram_base = mem.CardOffset >> 12;
	295	ti->sram_virt = ioremap(req.Base, req.Size);
	296	ti->sram_phys = req.Base;
	297
fba395ee	298	CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4 LT	299
	300	/* Set up the Token-Ring Controller Configuration Register and
	301	turn on the card. Check the "Local Area Network Credit Card
	302	Adapters Technical Reference" SC30-3585 for this info. */
	303	ibmtr_hw_setup(dev, mmiobase);
	304
fd238232	305	link->dev_node = &info->node;
1da177e4	306	link->state &= ~DEV_CONFIG_PENDING;
fba395ee	307	SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4 LT	308
	309	i = ibmtr_probe_card(dev);
	310	if (i != 0) {
	311	printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n");
fd238232	312	link->dev_node = NULL;
1da177e4 LT	313	goto failed;
	314	}
	315
	316	strcpy(info->node.dev_name, dev->name);
	317
	318	printk(KERN_INFO "%s: port %#3lx, irq %d,",
	319	dev->name, dev->base_addr, dev->irq);
	320	printk (" mmio %#5lx,", (u_long)ti->mmio);
	321	printk (" sram %#5lx,", (u_long)ti->sram_base << 12);
	322	printk ("\n" KERN_INFO " hwaddr=");
	323	for (i = 0; i < TR_ALEN; i++)
	324	printk("%02X", dev->dev_addr[i]);
	325	printk("\n");
	326	return;
	327
	328	cs_failed:
fba395ee	329	cs_error(link, last_fn, last_ret);
1da177e4 LT	330	failed:
	331	ibmtr_release(link);
	332	} /* ibmtr_config */
	333
	334	/*======================================================================
	335
	336	After a card is removed, ibmtr_release() will unregister the net
	337	device, and release the PCMCIA configuration. If the device is
	338	still open, this will be postponed until it is closed.
	339
	340	======================================================================*/
	341
fba395ee	342	static void ibmtr_release(struct pcmcia_device *link)
1da177e4	343	{
5f2a71fc DB	344	ibmtr_dev_t *info = link->priv;
5f2a71fc DB	345	struct net_device *dev = info->dev;
1da177e4	346
5f2a71fc	347	DEBUG(0, "ibmtr_release(0x%p)\n", link);
1da177e4	348
5f2a71fc DB	349	if (link->win) {
	350	struct tok_info *ti = netdev_priv(dev);
	351	iounmap(ti->mmio);
	352	pcmcia_release_window(info->sram_win_handle);
	353	}
fba395ee	354	pcmcia_disable_device(link);
1da177e4 LT	355	}
1da177e4 LT	356
fba395ee	357	static int ibmtr_suspend(struct pcmcia_device *link)
98e4c28b	358	{
98e4c28b DB	359	ibmtr_dev_t *info = link->priv;
	360	struct net_device *dev = info->dev;
	361
8661bb5b DB	362	if ((link->state & DEV_CONFIG) && (link->open))
8661bb5b DB	363	netif_device_detach(dev);
98e4c28b DB	364
	365	return 0;
	366	}
	367
fba395ee	368	static int ibmtr_resume(struct pcmcia_device *link)
98e4c28b	369	{
98e4c28b DB	370	ibmtr_dev_t *info = link->priv;
	371	struct net_device *dev = info->dev;
	372
8661bb5b DB	373	if ((link->state & DEV_CONFIG) && (link->open)) {
	374	ibmtr_probe(dev); /* really? */
	375	netif_device_attach(dev);
	376	}
98e4c28b DB	377
	378	return 0;
	379	}
	380
	381
1da177e4 LT	382	/====================================================================/
	383
	384	static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase)
	385	{
	386	int i;
	387
	388	/* Bizarre IBM behavior, there are 16 bits of information we
	389	need to set, but the card only allows us to send 4 bits at a
	390	time. For each byte sent to base_addr, bits 7-4 tell the
	391	card which part of the 16 bits we are setting, bits 3-0 contain
	392	the actual information */
	393
	394	/* First nibble provides 4 bits of mmio */
	395	i = (mmiobase >> 16) & 0x0F;
	396	outb(i, dev->base_addr);
	397
	398	/* Second nibble provides 3 bits of mmio */
	399	i = 0x10 \| ((mmiobase >> 12) & 0x0E);
	400	outb(i, dev->base_addr);
	401
	402	/* Third nibble, hard-coded values */
	403	i = 0x26;
	404	outb(i, dev->base_addr);
	405
	406	/* Fourth nibble sets shared ram page size */
	407
	408	/* 8 = 00, 16 = 01, 32 = 10, 64 = 11 */
	409	i = (sramsize >> 4) & 0x07;
	410	i = ((i == 4) ? 3 : i) << 2;
	411	i \|= 0x30;
	412
	413	if (ringspeed == 16)
	414	i \|= 2;
	415	if (dev->base_addr == 0xA24)
	416	i \|= 1;
	417	outb(i, dev->base_addr);
	418
	419	/* 0x40 will release the card for use */
	420	outb(0x40, dev->base_addr);
	421
	422	return;
	423	}
	424
469bf2b9 DB	425	static struct pcmcia_device_id ibmtr_ids[] = {
	426	PCMCIA_DEVICE_PROD_ID12("3Com", "TokenLink Velocity PC Card", 0x41240e5b, 0x82c3734e),
	427	PCMCIA_DEVICE_PROD_ID12("IBM", "TOKEN RING", 0xb569a6e5, 0xbf8eed47),
	428	PCMCIA_DEVICE_NULL,
	429	};
	430	MODULE_DEVICE_TABLE(pcmcia, ibmtr_ids);
	431
1da177e4 LT	432	static struct pcmcia_driver ibmtr_cs_driver = {
	433	.owner = THIS_MODULE,
	434	.drv = {
	435	.name = "ibmtr_cs",
	436	},
f8cfa618	437	.probe = ibmtr_attach,
cc3b4866	438	.remove = ibmtr_detach,
469bf2b9	439	.id_table = ibmtr_ids,
98e4c28b DB	440	.suspend = ibmtr_suspend,
98e4c28b DB	441	.resume = ibmtr_resume,
1da177e4 LT	442	};
	443
	444	static int __init init_ibmtr_cs(void)
	445	{
	446	return pcmcia_register_driver(&ibmtr_cs_driver);
	447	}
	448
	449	static void __exit exit_ibmtr_cs(void)
	450	{
	451	pcmcia_unregister_driver(&ibmtr_cs_driver);
1da177e4 LT	452	}
	453
	454	module_init(init_ibmtr_cs);
	455	module_exit(exit_ibmtr_cs);