[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 int 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 const 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 __devinit 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 = kzalloc(sizeof(*info), GFP_KERNEL);
    if (!info) return -ENOMEM;
    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);

    return ibmtr_config(link);
} /* 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;
     struct tok_info *ti = netdev_priv(dev);

    DEBUG(0, "ibmtr_detach(0x%p)\n", link);
    
    /* 
     * When the card removal interrupt hits tok_interrupt(), 
     * bail out early, so we don't crash the machine 
     */
    ti->sram_phys |= 1;

    if (link->dev_node)
	unregister_netdev(dev);
    
    del_timer_sync(&(ti->tr_timer));

    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 int __devinit 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);
    win_req_t req;
    memreq_t mem;
    int i, last_ret, last_fn;

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

    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 != 0) {
	/* 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;
    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 0;

cs_failed:
    cs_error(link, last_fn, last_ret);
failed:
    ibmtr_release(link);
    return -ENODEV;
} /* 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->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->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
15b99ac1	108	static int 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
7282d491	129	static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4 LT	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
abf0437b	141	static int __devinit 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 */
dd00cc48	149	info = kzalloc(sizeof(*info), GFP_KERNEL);
f8cfa618	150	if (!info) return -ENOMEM;
1da177e4	151	dev = alloc_trdev(sizeof(struct tok_info));
f8cfa618 DB	152	if (!dev) {
	153	kfree(info);
	154	return -ENOMEM;
	155	}
1da177e4	156
fba395ee	157	info->p_dev = link;
1da177e4 LT	158	link->priv = info;
	159	info->ti = netdev_priv(dev);
	160
	161	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
	162	link->io.NumPorts1 = 4;
	163	link->io.IOAddrLines = 16;
	164	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE \| IRQ_HANDLE_PRESENT;
	165	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
	166	link->irq.Handler = &tok_interrupt;
	167	link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4 LT	168	link->conf.IntType = INT_MEMORY_AND_IO;
	169	link->conf.Present = PRESENT_OPTION;
	170
	171	link->irq.Instance = info->dev = dev;
1da177e4	172
fd238232	173	SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
1da177e4	174
15b99ac1	175	return ibmtr_config(link);
1da177e4 LT	176	} /* ibmtr_attach */
	177
	178	/*======================================================================
	179
	180	This deletes a driver "instance". The device is de-registered
	181	with Card Services. If it has been released, all local data
	182	structures are freed. Otherwise, the structures will be freed
	183	when the device is released.
	184
	185	======================================================================*/
	186
fba395ee	187	static void ibmtr_detach(struct pcmcia_device *link)
1da177e4 LT	188	{
1da177e4 LT	189	struct ibmtr_dev_t *info = link->priv;
b4635811	190	struct net_device *dev = info->dev;
5bebf82f	191	struct tok_info *ti = netdev_priv(dev);
1da177e4 LT	192
1da177e4 LT	193	DEBUG(0, "ibmtr_detach(0x%p)\n", link);
5bebf82f PW	194
	195	/*
	196	* When the card removal interrupt hits tok_interrupt(),
	197	* bail out early, so we don't crash the machine
	198	*/
	199	ti->sram_phys \|= 1;
1da177e4	200
fd238232	201	if (link->dev_node)
1da177e4	202	unregister_netdev(dev);
5bebf82f PW	203
5bebf82f PW	204	del_timer_sync(&(ti->tr_timer));
e2d40963 DB	205
e2d40963 DB	206	ibmtr_release(link);
1da177e4	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
abf0437b	223	static int __devinit 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);
1da177e4 LT	228	win_req_t req;
	229	memreq_t mem;
	230	int i, last_ret, last_fn;
1da177e4 LT	231
	232	DEBUG(0, "ibmtr_config(0x%p)\n", link);
	233
1da177e4 LT	234	link->conf.ConfigIndex = 0x61;
	235
	236	/* Determine if this is PRIMARY or ALTERNATE. */
	237
	238	/* Try PRIMARY card at 0xA20-0xA23 */
	239	link->io.BasePort1 = 0xA20;
fba395ee	240	i = pcmcia_request_io(link, &link->io);
4c89e88b	241	if (i != 0) {
1da177e4 LT	242	/* Couldn't get 0xA20-0xA23. Try ALTERNATE at 0xA24-0xA27. */
1da177e4 LT	243	link->io.BasePort1 = 0xA24;
fba395ee	244	CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
1da177e4 LT	245	}
	246	dev->base_addr = link->io.BasePort1;
	247
fba395ee	248	CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
1da177e4 LT	249	dev->irq = link->irq.AssignedIRQ;
	250	ti->irq = link->irq.AssignedIRQ;
	251	ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);
	252
	253	/* Allocate the MMIO memory window */
	254	req.Attributes = WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	255	req.Attributes \|= WIN_USE_WAIT;
	256	req.Base = 0;
	257	req.Size = 0x2000;
	258	req.AccessSpeed = 250;
fba395ee	259	CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));
1da177e4 LT	260
	261	mem.CardOffset = mmiobase;
	262	mem.Page = 0;
	263	CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
	264	ti->mmio = ioremap(req.Base, req.Size);
	265
	266	/* Allocate the SRAM memory window */
	267	req.Attributes = WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	268	req.Attributes \|= WIN_USE_WAIT;
	269	req.Base = 0;
	270	req.Size = sramsize * 1024;
	271	req.AccessSpeed = 250;
fba395ee	272	CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &info->sram_win_handle));
1da177e4 LT	273
	274	mem.CardOffset = srambase;
	275	mem.Page = 0;
	276	CS_CHECK(MapMemPage, pcmcia_map_mem_page(info->sram_win_handle, &mem));
	277
	278	ti->sram_base = mem.CardOffset >> 12;
	279	ti->sram_virt = ioremap(req.Base, req.Size);
	280	ti->sram_phys = req.Base;
	281
fba395ee	282	CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4 LT	283
	284	/* Set up the Token-Ring Controller Configuration Register and
	285	turn on the card. Check the "Local Area Network Credit Card
	286	Adapters Technical Reference" SC30-3585 for this info. */
	287	ibmtr_hw_setup(dev, mmiobase);
	288
fd238232	289	link->dev_node = &info->node;
fba395ee	290	SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4 LT	291
	292	i = ibmtr_probe_card(dev);
	293	if (i != 0) {
	294	printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n");
fd238232	295	link->dev_node = NULL;
1da177e4 LT	296	goto failed;
	297	}
	298
	299	strcpy(info->node.dev_name, dev->name);
	300
	301	printk(KERN_INFO "%s: port %#3lx, irq %d,",
	302	dev->name, dev->base_addr, dev->irq);
	303	printk (" mmio %#5lx,", (u_long)ti->mmio);
	304	printk (" sram %#5lx,", (u_long)ti->sram_base << 12);
	305	printk ("\n" KERN_INFO " hwaddr=");
	306	for (i = 0; i < TR_ALEN; i++)
	307	printk("%02X", dev->dev_addr[i]);
	308	printk("\n");
15b99ac1	309	return 0;
1da177e4 LT	310
1da177e4 LT	311	cs_failed:
fba395ee	312	cs_error(link, last_fn, last_ret);
1da177e4 LT	313	failed:
1da177e4 LT	314	ibmtr_release(link);
15b99ac1	315	return -ENODEV;
1da177e4 LT	316	} /* ibmtr_config */
	317
	318	/*======================================================================
	319
	320	After a card is removed, ibmtr_release() will unregister the net
	321	device, and release the PCMCIA configuration. If the device is
	322	still open, this will be postponed until it is closed.
	323
	324	======================================================================*/
	325
fba395ee	326	static void ibmtr_release(struct pcmcia_device *link)
1da177e4	327	{
5f2a71fc DB	328	ibmtr_dev_t *info = link->priv;
5f2a71fc DB	329	struct net_device *dev = info->dev;
1da177e4	330
5f2a71fc	331	DEBUG(0, "ibmtr_release(0x%p)\n", link);
1da177e4	332
5f2a71fc DB	333	if (link->win) {
	334	struct tok_info *ti = netdev_priv(dev);
	335	iounmap(ti->mmio);
	336	pcmcia_release_window(info->sram_win_handle);
	337	}
fba395ee	338	pcmcia_disable_device(link);
1da177e4 LT	339	}
1da177e4 LT	340
fba395ee	341	static int ibmtr_suspend(struct pcmcia_device *link)
98e4c28b	342	{
98e4c28b DB	343	ibmtr_dev_t *info = link->priv;
	344	struct net_device *dev = info->dev;
	345
e2d40963	346	if (link->open)
8661bb5b	347	netif_device_detach(dev);
98e4c28b DB	348
	349	return 0;
	350	}
	351
fba395ee	352	static int ibmtr_resume(struct pcmcia_device *link)
98e4c28b	353	{
98e4c28b DB	354	ibmtr_dev_t *info = link->priv;
	355	struct net_device *dev = info->dev;
	356
e2d40963	357	if (link->open) {
8661bb5b DB	358	ibmtr_probe(dev); /* really? */
	359	netif_device_attach(dev);
	360	}
98e4c28b DB	361
	362	return 0;
	363	}
	364
	365
1da177e4 LT	366	/====================================================================/
	367
	368	static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase)
	369	{
	370	int i;
	371
	372	/* Bizarre IBM behavior, there are 16 bits of information we
	373	need to set, but the card only allows us to send 4 bits at a
	374	time. For each byte sent to base_addr, bits 7-4 tell the
	375	card which part of the 16 bits we are setting, bits 3-0 contain
	376	the actual information */
	377
	378	/* First nibble provides 4 bits of mmio */
	379	i = (mmiobase >> 16) & 0x0F;
	380	outb(i, dev->base_addr);
	381
	382	/* Second nibble provides 3 bits of mmio */
	383	i = 0x10 \| ((mmiobase >> 12) & 0x0E);
	384	outb(i, dev->base_addr);
	385
	386	/* Third nibble, hard-coded values */
	387	i = 0x26;
	388	outb(i, dev->base_addr);
	389
	390	/* Fourth nibble sets shared ram page size */
	391
	392	/* 8 = 00, 16 = 01, 32 = 10, 64 = 11 */
	393	i = (sramsize >> 4) & 0x07;
	394	i = ((i == 4) ? 3 : i) << 2;
	395	i \|= 0x30;
	396
	397	if (ringspeed == 16)
	398	i \|= 2;
	399	if (dev->base_addr == 0xA24)
	400	i \|= 1;
	401	outb(i, dev->base_addr);
	402
	403	/* 0x40 will release the card for use */
	404	outb(0x40, dev->base_addr);
	405
	406	return;
	407	}
	408
469bf2b9 DB	409	static struct pcmcia_device_id ibmtr_ids[] = {
	410	PCMCIA_DEVICE_PROD_ID12("3Com", "TokenLink Velocity PC Card", 0x41240e5b, 0x82c3734e),
	411	PCMCIA_DEVICE_PROD_ID12("IBM", "TOKEN RING", 0xb569a6e5, 0xbf8eed47),
	412	PCMCIA_DEVICE_NULL,
	413	};
	414	MODULE_DEVICE_TABLE(pcmcia, ibmtr_ids);
	415
1da177e4 LT	416	static struct pcmcia_driver ibmtr_cs_driver = {
	417	.owner = THIS_MODULE,
	418	.drv = {
	419	.name = "ibmtr_cs",
	420	},
f8cfa618	421	.probe = ibmtr_attach,
cc3b4866	422	.remove = ibmtr_detach,
469bf2b9	423	.id_table = ibmtr_ids,
98e4c28b DB	424	.suspend = ibmtr_suspend,
98e4c28b DB	425	.resume = ibmtr_resume,
1da177e4 LT	426	};
	427
	428	static int __init init_ibmtr_cs(void)
	429	{
	430	return pcmcia_register_driver(&ibmtr_cs_driver);
	431	}
	432
	433	static void __exit exit_ibmtr_cs(void)
	434	{
	435	pcmcia_unregister_driver(&ibmtr_cs_driver);
1da177e4 LT	436	}
	437
	438	module_init(init_ibmtr_cs);
	439	module_exit(exit_ibmtr_cs);