[deliverable/linux.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.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"


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

/* 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;
	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,
};

static irqreturn_t ibmtr_interrupt(int irq, void *dev_id) {
	ibmtr_dev_t *info = dev_id;
	struct net_device *dev = info->dev;
	return tok_interrupt(irq, dev);
};

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

    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;

    dev_dbg(&link->dev, "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->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
    link->resource[0]->end = 4;
    link->conf.Attributes = CONF_ENABLE_IRQ;
    link->conf.Present = PRESENT_OPTION;

    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);

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

    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.

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

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);
    int i, ret;

    dev_dbg(&link->dev, "ibmtr_config\n");

    link->conf.ConfigIndex = 0x61;
    link->io_lines = 16;

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

    /* Try PRIMARY card at 0xA20-0xA23 */
    link->resource[0]->start = 0xA20;
    i = pcmcia_request_io(link);
    if (i != 0) {
	/* Couldn't get 0xA20-0xA23.  Try ALTERNATE at 0xA24-0xA27. */
	link->resource[0]->start = 0xA24;
	ret = pcmcia_request_io(link);
	if (ret)
		goto failed;
    }
    dev->base_addr = link->resource[0]->start;

    ret = pcmcia_request_exclusive_irq(link, ibmtr_interrupt);
    if (ret)
	    goto failed;
    dev->irq = link->irq;
    ti->irq = link->irq;
    ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);

    /* Allocate the MMIO memory window */
    link->resource[2]->flags |= WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
    link->resource[2]->flags |= WIN_USE_WAIT;
    link->resource[2]->start = 0;
    link->resource[2]->end = 0x2000;
    ret = pcmcia_request_window(link, link->resource[2], 250);
    if (ret)
	    goto failed;

    ret = pcmcia_map_mem_page(link, link->resource[2], mmiobase);
    if (ret)
	    goto failed;
    ti->mmio = ioremap(link->resource[2]->start,
		    resource_size(link->resource[2]));

    /* Allocate the SRAM memory window */
    link->resource[3]->flags = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
    link->resource[3]->flags |= WIN_USE_WAIT;
    link->resource[3]->start = 0;
    link->resource[3]->end = sramsize * 1024;
    ret = pcmcia_request_window(link, link->resource[3], 250);
    if (ret)
	    goto failed;

    ret = pcmcia_map_mem_page(link, link->resource[3], srambase);
    if (ret)
	    goto failed;

    ti->sram_base = srambase >> 12;
    ti->sram_virt = ioremap(link->resource[3]->start,
		    resource_size(link->resource[3]));
    ti->sram_phys = link->resource[3]->start;

    ret = pcmcia_request_configuration(link, &link->conf);
    if (ret)
	    goto failed;

    /*  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);

    SET_NETDEV_DEV(dev, &link->dev);

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

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

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;

	dev_dbg(&link->dev, "ibmtr_release\n");

	if (link->resource[2]->end) {
		struct tok_info *ti = netdev_priv(dev);
		iounmap(ti->mmio);
	}
	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 __devinit 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);
}

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.h>
	61	#include <pcmcia/cistpl.h>
	62	#include <pcmcia/ds.h>
	63
	64	#include <asm/uaccess.h>
	65	#include <asm/io.h>
	66	#include <asm/system.h>
	67
	68	#define PCMCIA
	69	#include "../tokenring/ibmtr.c"
	70
1da177e4 LT	71
	72	/====================================================================/
	73
	74	/* Parameters that can be set with 'insmod' */
	75
	76	/* MMIO base address */
	77	static u_long mmiobase = 0xce000;
	78
	79	/* SRAM base address */
	80	static u_long srambase = 0xd0000;
	81
	82	/* SRAM size 8,16,32,64 */
	83	static u_long sramsize = 64;
	84
	85	/* Ringspeed 4,16 */
	86	static int ringspeed = 16;
	87
	88	module_param(mmiobase, ulong, 0);
	89	module_param(srambase, ulong, 0);
	90	module_param(sramsize, ulong, 0);
	91	module_param(ringspeed, int, 0);
	92	MODULE_LICENSE("GPL");
	93
	94	/====================================================================/
	95
15b99ac1	96	static int ibmtr_config(struct pcmcia_device *link);
1da177e4	97	static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase);
fba395ee	98	static void ibmtr_release(struct pcmcia_device *link);
cc3b4866	99	static void ibmtr_detach(struct pcmcia_device *p_dev);
1da177e4	100
1da177e4 LT	101	/====================================================================/
	102
	103	typedef struct ibmtr_dev_t {
fd238232	104	struct pcmcia_device *p_dev;
cdb13808 DB	105	struct net_device *dev;
cdb13808 DB	106	struct tok_info *ti;
1da177e4 LT	107	} ibmtr_dev_t;
	108
	109	static void netdev_get_drvinfo(struct net_device *dev,
	110	struct ethtool_drvinfo *info)
	111	{
	112	strcpy(info->driver, "ibmtr_cs");
	113	}
	114
7282d491	115	static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4 LT	116	.get_drvinfo = netdev_get_drvinfo,
	117	};
	118
5fa9167a DB	119	static irqreturn_t ibmtr_interrupt(int irq, void *dev_id) {
	120	ibmtr_dev_t *info = dev_id;
	121	struct net_device *dev = info->dev;
	122	return tok_interrupt(irq, dev);
	123	};
	124
1da177e4 LT	125	/*======================================================================
	126
	127	ibmtr_attach() creates an "instance" of the driver, allocating
	128	local data structures for one device. The device is registered
	129	with Card Services.
	130
	131	======================================================================*/
	132
abf0437b	133	static int __devinit ibmtr_attach(struct pcmcia_device *link)
1da177e4 LT	134	{
1da177e4 LT	135	ibmtr_dev_t *info;
1da177e4	136	struct net_device *dev;
fba395ee	137
dd0fab5b	138	dev_dbg(&link->dev, "ibmtr_attach()\n");
1da177e4 LT	139
1da177e4 LT	140	/* Create new token-ring device */
dd00cc48	141	info = kzalloc(sizeof(*info), GFP_KERNEL);
f8cfa618	142	if (!info) return -ENOMEM;
1da177e4	143	dev = alloc_trdev(sizeof(struct tok_info));
f8cfa618 DB	144	if (!dev) {
	145	kfree(info);
	146	return -ENOMEM;
	147	}
1da177e4	148
fba395ee	149	info->p_dev = link;
1da177e4 LT	150	link->priv = info;
	151	info->ti = netdev_priv(dev);
	152
90abdc3b DB	153	link->resource[0]->flags \|= IO_DATA_PATH_WIDTH_8;
90abdc3b DB	154	link->resource[0]->end = 4;
1da177e4	155	link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4 LT	156	link->conf.Present = PRESENT_OPTION;
1da177e4 LT	157
5fa9167a	158	info->dev = dev;
1da177e4	159
fd238232	160	SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
1da177e4	161
15b99ac1	162	return ibmtr_config(link);
1da177e4 LT	163	} /* ibmtr_attach */
	164
	165	/*======================================================================
	166
	167	This deletes a driver "instance". The device is de-registered
	168	with Card Services. If it has been released, all local data
	169	structures are freed. Otherwise, the structures will be freed
	170	when the device is released.
	171
	172	======================================================================*/
	173
fba395ee	174	static void ibmtr_detach(struct pcmcia_device *link)
1da177e4 LT	175	{
1da177e4 LT	176	struct ibmtr_dev_t *info = link->priv;
b4635811	177	struct net_device *dev = info->dev;
5bebf82f	178	struct tok_info *ti = netdev_priv(dev);
1da177e4	179
dd0fab5b	180	dev_dbg(&link->dev, "ibmtr_detach\n");
5bebf82f PW	181
	182	/*
	183	* When the card removal interrupt hits tok_interrupt(),
	184	* bail out early, so we don't crash the machine
	185	*/
	186	ti->sram_phys \|= 1;
1da177e4	187
c7c2fa07	188	unregister_netdev(dev);
5bebf82f PW	189
5bebf82f PW	190	del_timer_sync(&(ti->tr_timer));
e2d40963 DB	191
e2d40963 DB	192	ibmtr_release(link);
1da177e4	193
1da177e4	194	free_netdev(dev);
b4635811	195	kfree(info);
1da177e4 LT	196	} /* ibmtr_detach */
	197
	198	/*======================================================================
	199
	200	ibmtr_config() is scheduled to run after a CARD_INSERTION event
	201	is received, to configure the PCMCIA socket, and to make the
	202	token-ring device available to the system.
	203
	204	======================================================================*/
	205
abf0437b	206	static int __devinit ibmtr_config(struct pcmcia_device *link)
1da177e4	207	{
1da177e4 LT	208	ibmtr_dev_t *info = link->priv;
	209	struct net_device *dev = info->dev;
	210	struct tok_info *ti = netdev_priv(dev);
dd0fab5b	211	int i, ret;
1da177e4	212
dd0fab5b	213	dev_dbg(&link->dev, "ibmtr_config\n");
1da177e4	214
1da177e4	215	link->conf.ConfigIndex = 0x61;
90abdc3b	216	link->io_lines = 16;
1da177e4 LT	217
	218	/* Determine if this is PRIMARY or ALTERNATE. */
	219
	220	/* Try PRIMARY card at 0xA20-0xA23 */
90abdc3b DB	221	link->resource[0]->start = 0xA20;
90abdc3b DB	222	i = pcmcia_request_io(link);
4c89e88b	223	if (i != 0) {
1da177e4	224	/* Couldn't get 0xA20-0xA23. Try ALTERNATE at 0xA24-0xA27. */
90abdc3b DB	225	link->resource[0]->start = 0xA24;
90abdc3b DB	226	ret = pcmcia_request_io(link);
dd0fab5b DB	227	if (ret)
dd0fab5b DB	228	goto failed;
1da177e4	229	}
9a017a91	230	dev->base_addr = link->resource[0]->start;
1da177e4	231
eb14120f	232	ret = pcmcia_request_exclusive_irq(link, ibmtr_interrupt);
dd0fab5b DB	233	if (ret)
dd0fab5b DB	234	goto failed;
eb14120f DB	235	dev->irq = link->irq;
eb14120f DB	236	ti->irq = link->irq;
1da177e4 LT	237	ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);
	238
	239	/* Allocate the MMIO memory window */
cdb13808 DB	240	link->resource[2]->flags \|= WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	241	link->resource[2]->flags \|= WIN_USE_WAIT;
	242	link->resource[2]->start = 0;
	243	link->resource[2]->end = 0x2000;
	244	ret = pcmcia_request_window(link, link->resource[2], 250);
dd0fab5b DB	245	if (ret)
dd0fab5b DB	246	goto failed;
1da177e4	247
cdb13808	248	ret = pcmcia_map_mem_page(link, link->resource[2], mmiobase);
dd0fab5b DB	249	if (ret)
dd0fab5b DB	250	goto failed;
cdb13808 DB	251	ti->mmio = ioremap(link->resource[2]->start,
cdb13808 DB	252	resource_size(link->resource[2]));
1da177e4 LT	253
1da177e4 LT	254	/* Allocate the SRAM memory window */
cdb13808 DB	255	link->resource[3]->flags = WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	256	link->resource[3]->flags \|= WIN_USE_WAIT;
	257	link->resource[3]->start = 0;
	258	link->resource[3]->end = sramsize * 1024;
	259	ret = pcmcia_request_window(link, link->resource[3], 250);
dd0fab5b DB	260	if (ret)
dd0fab5b DB	261	goto failed;
1da177e4	262
cdb13808	263	ret = pcmcia_map_mem_page(link, link->resource[3], srambase);
dd0fab5b DB	264	if (ret)
dd0fab5b DB	265	goto failed;
1da177e4	266
b5cb259e	267	ti->sram_base = srambase >> 12;
cdb13808 DB	268	ti->sram_virt = ioremap(link->resource[3]->start,
	269	resource_size(link->resource[3]));
	270	ti->sram_phys = link->resource[3]->start;
1da177e4	271
dd0fab5b DB	272	ret = pcmcia_request_configuration(link, &link->conf);
	273	if (ret)
	274	goto failed;
1da177e4 LT	275
	276	/* Set up the Token-Ring Controller Configuration Register and
	277	turn on the card. Check the "Local Area Network Credit Card
	278	Adapters Technical Reference" SC30-3585 for this info. */
	279	ibmtr_hw_setup(dev, mmiobase);
	280
dd2e5a15	281	SET_NETDEV_DEV(dev, &link->dev);
1da177e4 LT	282
	283	i = ibmtr_probe_card(dev);
	284	if (i != 0) {
	285	printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n");
1da177e4 LT	286	goto failed;
	287	}
	288
ad361c98 JP	289	printk(KERN_INFO
	290	"%s: port %#3lx, irq %d, mmio %#5lx, sram %#5lx, hwaddr=%pM\n",
	291	dev->name, dev->base_addr, dev->irq,
	292	(u_long)ti->mmio, (u_long)(ti->sram_base << 12),
	293	dev->dev_addr);
15b99ac1	294	return 0;
1da177e4	295
1da177e4 LT	296	failed:
1da177e4 LT	297	ibmtr_release(link);
15b99ac1	298	return -ENODEV;
1da177e4 LT	299	} /* ibmtr_config */
	300
	301	/*======================================================================
	302
	303	After a card is removed, ibmtr_release() will unregister the net
	304	device, and release the PCMCIA configuration. If the device is
	305	still open, this will be postponed until it is closed.
	306
	307	======================================================================*/
	308
fba395ee	309	static void ibmtr_release(struct pcmcia_device *link)
1da177e4	310	{
5f2a71fc DB	311	ibmtr_dev_t *info = link->priv;
5f2a71fc DB	312	struct net_device *dev = info->dev;
1da177e4	313
dd0fab5b	314	dev_dbg(&link->dev, "ibmtr_release\n");
1da177e4	315
cdb13808	316	if (link->resource[2]->end) {
5f2a71fc DB	317	struct tok_info *ti = netdev_priv(dev);
5f2a71fc DB	318	iounmap(ti->mmio);
5f2a71fc	319	}
fba395ee	320	pcmcia_disable_device(link);
1da177e4 LT	321	}
1da177e4 LT	322
fba395ee	323	static int ibmtr_suspend(struct pcmcia_device *link)
98e4c28b	324	{
98e4c28b DB	325	ibmtr_dev_t *info = link->priv;
	326	struct net_device *dev = info->dev;
	327
e2d40963	328	if (link->open)
8661bb5b	329	netif_device_detach(dev);
98e4c28b DB	330
	331	return 0;
	332	}
	333
8814b505	334	static int __devinit ibmtr_resume(struct pcmcia_device *link)
98e4c28b	335	{
98e4c28b DB	336	ibmtr_dev_t *info = link->priv;
	337	struct net_device *dev = info->dev;
	338
e2d40963	339	if (link->open) {
8661bb5b DB	340	ibmtr_probe(dev); /* really? */
	341	netif_device_attach(dev);
	342	}
98e4c28b DB	343
	344	return 0;
	345	}
	346
	347
1da177e4 LT	348	/====================================================================/
	349
	350	static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase)
	351	{
	352	int i;
	353
	354	/* Bizarre IBM behavior, there are 16 bits of information we
	355	need to set, but the card only allows us to send 4 bits at a
	356	time. For each byte sent to base_addr, bits 7-4 tell the
	357	card which part of the 16 bits we are setting, bits 3-0 contain
	358	the actual information */
	359
	360	/* First nibble provides 4 bits of mmio */
	361	i = (mmiobase >> 16) & 0x0F;
	362	outb(i, dev->base_addr);
	363
	364	/* Second nibble provides 3 bits of mmio */
	365	i = 0x10 \| ((mmiobase >> 12) & 0x0E);
	366	outb(i, dev->base_addr);
	367
	368	/* Third nibble, hard-coded values */
	369	i = 0x26;
	370	outb(i, dev->base_addr);
	371
	372	/* Fourth nibble sets shared ram page size */
	373
	374	/* 8 = 00, 16 = 01, 32 = 10, 64 = 11 */
	375	i = (sramsize >> 4) & 0x07;
	376	i = ((i == 4) ? 3 : i) << 2;
	377	i \|= 0x30;
	378
	379	if (ringspeed == 16)
	380	i \|= 2;
	381	if (dev->base_addr == 0xA24)
	382	i \|= 1;
	383	outb(i, dev->base_addr);
	384
	385	/* 0x40 will release the card for use */
	386	outb(0x40, dev->base_addr);
1da177e4 LT	387	}
1da177e4 LT	388
469bf2b9 DB	389	static struct pcmcia_device_id ibmtr_ids[] = {
	390	PCMCIA_DEVICE_PROD_ID12("3Com", "TokenLink Velocity PC Card", 0x41240e5b, 0x82c3734e),
	391	PCMCIA_DEVICE_PROD_ID12("IBM", "TOKEN RING", 0xb569a6e5, 0xbf8eed47),
	392	PCMCIA_DEVICE_NULL,
	393	};
	394	MODULE_DEVICE_TABLE(pcmcia, ibmtr_ids);
	395
1da177e4 LT	396	static struct pcmcia_driver ibmtr_cs_driver = {
	397	.owner = THIS_MODULE,
	398	.drv = {
	399	.name = "ibmtr_cs",
	400	},
f8cfa618	401	.probe = ibmtr_attach,
cc3b4866	402	.remove = ibmtr_detach,
469bf2b9	403	.id_table = ibmtr_ids,
98e4c28b DB	404	.suspend = ibmtr_suspend,
98e4c28b DB	405	.resume = ibmtr_resume,
1da177e4 LT	406	};
	407
	408	static int __init init_ibmtr_cs(void)
	409	{
	410	return pcmcia_register_driver(&ibmtr_cs_driver);
	411	}
	412
	413	static void __exit exit_ibmtr_cs(void)
	414	{
	415	pcmcia_unregister_driver(&ibmtr_cs_driver);
1da177e4 LT	416	}
	417
	418	module_init(init_ibmtr_cs);
	419	module_exit(exit_ibmtr_cs);